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symptoms | What are the symptoms of 21-hydroxylase deficiency ? | What are the signs and symptoms of 21-hydroxylase deficiency? Symptoms can vary greatly from patient to patient with 21-hydroxylase deficiency, as a result distinct forms of this deficiency have been recognized. Three common forms include classical salt wasting, simple virilizing, and nonclassical. The Human Phenotype Ontology provides the following list of signs and symptoms for 21-hydroxylase deficiency. If the information is available, the table below includes how often the symptom is seen in people with this condition. You can use the MedlinePlus Medical Dictionary to look up the definitions for these medical terms. Signs and Symptoms Approximate number of patients (when available) Abnormality of the thorax - Adrenal hyperplasia - Adrenogenital syndrome - Autosomal recessive inheritance - Fever - Growth abnormality - Gynecomastia - Hypertension - Hypoglycemia - Hypospadias - Renal salt wasting - The Human Phenotype Ontology (HPO) has collected information on how often a sign or symptom occurs in a condition. Much of this information comes from Orphanet, a European rare disease database. The frequency of a sign or symptom is usually listed as a rough estimate of the percentage of patients who have that feature. The frequency may also be listed as a fraction. The first number of the fraction is how many people had the symptom, and the second number is the total number of people who were examined in one study. For example, a frequency of 25/25 means that in a study of 25 people all patients were found to have that symptom. Because these frequencies are based on a specific study, the fractions may be different if another group of patients are examined. Sometimes, no information on frequency is available. In these cases, the sign or symptom may be rare or common. What are the symptoms of classical salt wasting 21-hydroxylase-deficient congenital adrenal hyperplasia? The classical salt wasting form of 21-hydroxylase-deficient is a severe form of 21-hydroxylase deficiency. People with this condition have no 21-hydroxylase function.Within the first week of life newborns may have life threatening salt-wasting crises and low blood pressure. Females are often born with ambiguous genitalia. A close look at the hormone levels in patients with this form of 21-hydroxylase deficiency reveals an increased level of testosterone and rennin, and reduced levels of cortisol and aldosterone. Levels of 17-hydroxyprogesterone is over 5,000 nmol/L. What are the symptoms of simple virilizing 21-hydroxylase-deficient congenital adrenal hyperplasia? Patients with simple virilizing 21-hydroxylase-deficient congenital adrenal hyperplasia have some functioning 21-hydroxylase (about 1%). Females may be born with clitoral enlargement, labial fusion, and sexual ambiguity. Males may present in early childhood with signs of precocious puberty such as very early sexual development, pubic hair development, and/or growth acceleration. Untreated patients have a shorter than average adult height. A close look at hormone levels in patients with simple virilizing 21-hydroxylase deficiency reveal an increased level of testosterone, reduced level of cortisol, normal or increased level of renin, and normal levels of aldosterone. Levels of 17-Hydroxyprogesterone are 2500 to 5000 nmol/L. What are the symptoms of nonclassical 21-hydroxylase-deficient congenital adrenal hyperplasia? People with nonclassical or late-onset 21-hydroxylase-deficient congenital adrenal hyperplasia have 20% to 50% of 21-Hydroxylase activity. They may present in childhood or adulthood with early pubic hair growth or with symptoms of polycystic ovary syndrome. In females symptoms may include excessive hair growth, absent periods, infertility, androgenic alopecia, masculinized genitalia, and acne. Height is likely to be normal. A close look at the hormone levels in patients with the nonclassical type reveal a variably increased level of testosterone and normal levels of aldosterone, renin, and cortisol. Levels of 17-Hydroxyprogesterone are 500 to 2500 nmol/L. |
causes | What causes 21-hydroxylase deficiency ? | What causes salt-wasting, simple virilizing, and nonclassical 21-hydroxylase-deficient congenital adrenal hyperplasia? Salt-wasting, simple virilizing, and late-onset 21-hydroxylase deficiency are all caused by mutations in the human 21-hydroxylase gene (CYP21A2). |
inheritance | Is 21-hydroxylase deficiency inherited ? | How is 21-hydroxylase-deficient congenital adrenal hyperplasia passed through families? 21-hydroxylase-deficient congenital adrenal hyperplasia has an autosomal recessive pattern of inheritance. In autosomal recessive conditions, both parents carry one copy of a mutated gene for the disorder. They have a 25 percent chance with each pregnancy of having a child affected by the disorder. The chance with each pregnancy of having an unaffected child who is a carrier of the disorder is 50 percent, and the chance that a child will not have the disorder and will not be a carrier is 25 percent. See the illustration below. |
exams and tests | How to diagnose 21-hydroxylase deficiency ? | Is genetic testing for 21-hydroxylase-deficient congenital adrenal hyperplasia available? Yes. Genetic testing of 21-hydroxylase-deficient congenital adrenal hyperplasia is available. In most people with this condition, the genetic test result can be used to predict disease severity. Click here to view a list of laboratories offering CYP21A2 testing. |
treatment | What are the treatments for 21-hydroxylase deficiency ? | What is the goal for treating 21-hydroxylase-deficient congenital adrenal hyperplasia? The objectives for treating 21-hydroxylase deficiency differ with age. In childhood, the overall goal is to replace cortisol. Obtaining hormonal balance is important and patients growth velocity and bone age is monitored. Routine analysis of blood, urine, and/or saliva may also be necessary. Corrective surgery is frequently required for females born with abnormal genitalia. In late childhood and adolescence, maintaining hormonal balance is equally important. Overtreatment may result in obesity and delayed menarche/puberty, whereas under-replacement will result in sexual precocity. Also, it is important that teens and young adults with 21-hydroxylase deficiency be successfully transitioned to adult care facilities. Follow-up of adult patients should involve multidisciplinary clinics. Problems in adult women include fertility concerns, excessive hair growth, and menstrual irregularity; obesity and impact of short stature; sexual dysfunction and psychological problems. Counseling may be helpful. Adult males may develop enlargement of the testes and if so, should work with an endocrinologist familiar with the management of patients with this deficiency. |
symptoms | What are the symptoms of Familial hypocalciuric hypercalcemia type 3 ? | What are the signs and symptoms of Familial hypocalciuric hypercalcemia type 3? The Human Phenotype Ontology provides the following list of signs and symptoms for Familial hypocalciuric hypercalcemia type 3. If the information is available, the table below includes how often the symptom is seen in people with this condition. You can use the MedlinePlus Medical Dictionary to look up the definitions for these medical terms. Signs and Symptoms Approximate number of patients (when available) Nephrolithiasis 5% Peptic ulcer 5% Chondrocalcinosis - Hypercalcemia - Hypermagnesemia - Hypocalciuria - Multiple lipomas - Pancreatitis - Parathormone-independent increased renal tubular calcium reabsorption - Primary hyperparathyroidism - The Human Phenotype Ontology (HPO) has collected information on how often a sign or symptom occurs in a condition. Much of this information comes from Orphanet, a European rare disease database. The frequency of a sign or symptom is usually listed as a rough estimate of the percentage of patients who have that feature. The frequency may also be listed as a fraction. The first number of the fraction is how many people had the symptom, and the second number is the total number of people who were examined in one study. For example, a frequency of 25/25 means that in a study of 25 people all patients were found to have that symptom. Because these frequencies are based on a specific study, the fractions may be different if another group of patients are examined. Sometimes, no information on frequency is available. In these cases, the sign or symptom may be rare or common. |
symptoms | What are the symptoms of X-linked thrombocytopenia ? | What are the signs and symptoms of X-linked thrombocytopenia? The Human Phenotype Ontology provides the following list of signs and symptoms for X-linked thrombocytopenia. If the information is available, the table below includes how often the symptom is seen in people with this condition. You can use the MedlinePlus Medical Dictionary to look up the definitions for these medical terms. Signs and Symptoms Approximate number of patients (when available) Abnormality of the musculature - Bruising susceptibility - Congenital thrombocytopenia - Decreased mean platelet volume - Eczema - Epistaxis - Increased IgA level - Increased IgE level - Intermittent thrombocytopenia - Joint hemorrhage - Petechiae - X-linked recessive inheritance - The Human Phenotype Ontology (HPO) has collected information on how often a sign or symptom occurs in a condition. Much of this information comes from Orphanet, a European rare disease database. The frequency of a sign or symptom is usually listed as a rough estimate of the percentage of patients who have that feature. The frequency may also be listed as a fraction. The first number of the fraction is how many people had the symptom, and the second number is the total number of people who were examined in one study. For example, a frequency of 25/25 means that in a study of 25 people all patients were found to have that symptom. Because these frequencies are based on a specific study, the fractions may be different if another group of patients are examined. Sometimes, no information on frequency is available. In these cases, the sign or symptom may be rare or common. |
information | What is (are) Pendred syndrome ? | Pendred syndrome is a condition usually characterized by sensorineural hearing loss in both ears (bilateral) and euthyroid goiter (enlargement of the thyroid gland with normal thyroid gland function). The amount of hearing loss varies among affected people. In many cases, significant hearing loss is present at birth. In other cases, hearing loss does not develop until later in infancy or childhood. Some people have problems with balance caused by dysfunction of the part of the inner ear that helps with balance and orientation (the vestibular system). Pendred syndrome is inherited in an autosomal recessive manner. Mutations in 3 genes are currently known to cause the condition (SLC26A4, FOXI1, and KCNJ10) and are found in about half of affected people. Other genes responsible for the condition have not yet been identified. |
symptoms | What are the symptoms of Pendred syndrome ? | What are the signs and symptoms of Pendred syndrome? The Human Phenotype Ontology provides the following list of signs and symptoms for Pendred syndrome. If the information is available, the table below includes how often the symptom is seen in people with this condition. You can use the MedlinePlus Medical Dictionary to look up the definitions for these medical terms. Signs and Symptoms Approximate number of patients (when available) Sensorineural hearing impairment 90% Goiter 50% Hypothyroidism 50% Cognitive impairment 7.5% Hyperparathyroidism 7.5% Incoordination 7.5% Neoplasm of the thyroid gland 7.5% Nephropathy 7.5% Neurological speech impairment 7.5% Respiratory insufficiency 7.5% Tracheal stenosis 7.5% Vertigo 7.5% Abnormality of metabolism/homeostasis - Autosomal recessive inheritance - Cochlear malformation - Compensated hypothyroidism - Congenital sensorineural hearing impairment - Intellectual disability - Thyroid carcinoma - Vestibular dysfunction - The Human Phenotype Ontology (HPO) has collected information on how often a sign or symptom occurs in a condition. Much of this information comes from Orphanet, a European rare disease database. The frequency of a sign or symptom is usually listed as a rough estimate of the percentage of patients who have that feature. The frequency may also be listed as a fraction. The first number of the fraction is how many people had the symptom, and the second number is the total number of people who were examined in one study. For example, a frequency of 25/25 means that in a study of 25 people all patients were found to have that symptom. Because these frequencies are based on a specific study, the fractions may be different if another group of patients are examined. Sometimes, no information on frequency is available. In these cases, the sign or symptom may be rare or common. |
inheritance | Is Pendred syndrome inherited ? | How is Pendred syndrome inherited? Pendred syndrome is inherited in an autosomal recessive manner. For most autosomal recessive conditions, a person must have 2 changed (mutated) copies of the responsible gene in each cell in order to have the condition. One changed copy of the responsible gene is usually inherited from each parent; the parents are referred to as carriers. Carriers typically do not have signs or symptoms of the condition. When two carriers of an autosomal recessive condition have children, each child has a 25% (1 in 4) chance to be affected, a 50% (1 in 2) chance to be a carrier like each parent, and a 25% chance to not be a carrier and not have the condition. Pendred syndrome can be caused either by having mutations in both copies of the SLC26A4 gene (more commonly), or by having one mutation in the SLC26A4 gene and one mutation in another gene. |
symptoms | What are the symptoms of Quebec platelet disorder ? | What are the signs and symptoms of Quebec platelet disorder? The Human Phenotype Ontology provides the following list of signs and symptoms for Quebec platelet disorder. If the information is available, the table below includes how often the symptom is seen in people with this condition. You can use the MedlinePlus Medical Dictionary to look up the definitions for these medical terms. Signs and Symptoms Approximate number of patients (when available) Autosomal dominant inheritance - Bruising susceptibility - Epistaxis - Impaired epinephrine-induced platelet aggregation - Joint hemorrhage - Menorrhagia - Thrombocytopenia - The Human Phenotype Ontology (HPO) has collected information on how often a sign or symptom occurs in a condition. Much of this information comes from Orphanet, a European rare disease database. The frequency of a sign or symptom is usually listed as a rough estimate of the percentage of patients who have that feature. The frequency may also be listed as a fraction. The first number of the fraction is how many people had the symptom, and the second number is the total number of people who were examined in one study. For example, a frequency of 25/25 means that in a study of 25 people all patients were found to have that symptom. Because these frequencies are based on a specific study, the fractions may be different if another group of patients are examined. Sometimes, no information on frequency is available. In these cases, the sign or symptom may be rare or common. |
information | What is (are) Methylmalonic acidemia with homocystinuria, type cblC ? | Methylmalonic academia with homocystinuria (MMA+HCU) cblC is a genetic disorder that prevents the body from breaking down certain amino acids found in protein (i.e., isoleucine, valine, methionine, and threonine). As a result, homocystine, methylmalonic acid, and other harmful substances build-up in the body. Treatment should begin as soon as possible. In general, treatment may involve a low-protein diet, medical formula/drink, regular meals, careful monitoring, and vitamin B12 shots. Most US states now offer newborn screening for MMA+HCU, allowing for early detection and treatment. However even with early treatment, most children with MMA+HCU experience some symptoms affecting vision, growth, and learning. MMA+HCU cblC type is caused by changes in the MMACHC gene. It is inherited in an autosomal recessive fashion. |
symptoms | What are the symptoms of Methylmalonic acidemia with homocystinuria, type cblC ? | What are the signs and symptoms of Methylmalonic acidemia with homocystinuria, type cblC? For both methylmalonic acidemia and methylmalonic acidemia with homocystinuria (MMA+HCU) cblC type signs and symptoms can vary from mild to life-threatening. There have been cases of MMA+HCU cblC type associated with mild symptoms and delayed age at onset (teen to adult years). In most cases however, signs and symptoms of MMA+HCU cblC type present in infancy. Even with early diagnosis and treatment, children with the condition tend to have symptoms affecting vision, growth, and learning. A recent study of 12 children with early onset MMA+HCU CblC type, diagnosed by newborn screening, and treated early with intramuscular hydroxocobalamin, oral betaine, folinic acid, l-carnitine, and dietary protein modification were reported to have developed the following symptoms: Mild to moderate low muscle tone (91%) Quick uncontrollable movements of the eye (nystagmus) with variable affect on vision (75%) Seizure (25%) Small head circumference (17%) Testing of communication, socialization, daily living skills, motor skills, and behavior showed mild to moderate delays in these areas for most children. Socialization was the least affected aspect of development. The Human Phenotype Ontology provides the following list of signs and symptoms for Methylmalonic acidemia with homocystinuria, type cblC. If the information is available, the table below includes how often the symptom is seen in people with this condition. You can use the MedlinePlus Medical Dictionary to look up the definitions for these medical terms. Signs and Symptoms Approximate number of patients (when available) Anorexia 90% Hydrocephalus 90% Megaloblastic anemia 90% Microcephaly 90% Pallor 90% Reduced consciousness/confusion 90% Retinopathy 90% Seizures 90% Infantile onset 50% Abnormality of extrapyramidal motor function - Autosomal recessive inheritance - Cerebral cortical atrophy - Confusion - Cystathioninemia - Cystathioninuria - Decreased adenosylcobalamin - Decreased methionine synthase activity - Decreased methylcobalamin - Decreased methylmalonyl-CoA mutase activity - Dementia - Failure to thrive - Feeding difficulties in infancy - Hematuria - Hemolytic-uremic syndrome - High forehead - Homocystinuria - Hyperhomocystinemia - Hypomethioninemia - Intellectual disability - Lethargy - Long face - Low-set ears - Macrotia - Metabolic acidosis - Methylmalonic acidemia - Methylmalonic aciduria - Muscular hypotonia - Nephropathy - Neutropenia - Nystagmus - Pigmentary retinopathy - Proteinuria - Reduced visual acuity - Renal insufficiency - Smooth philtrum - Thrombocytopenia - Thromboembolism - Tremor - Visual impairment - The Human Phenotype Ontology (HPO) has collected information on how often a sign or symptom occurs in a condition. Much of this information comes from Orphanet, a European rare disease database. The frequency of a sign or symptom is usually listed as a rough estimate of the percentage of patients who have that feature. The frequency may also be listed as a fraction. The first number of the fraction is how many people had the symptom, and the second number is the total number of people who were examined in one study. For example, a frequency of 25/25 means that in a study of 25 people all patients were found to have that symptom. Because these frequencies are based on a specific study, the fractions may be different if another group of patients are examined. Sometimes, no information on frequency is available. In these cases, the sign or symptom may be rare or common. |
information | What is (are) Craniopharyngioma ? | A craniopharyngioma is a slow-growing benign tumor that develops near the pituitary gland (a small endocrine gland at the base of the brain) and the hypothalamus (a small cone-shaped organ connected to the pituitary gland by nerves). This tumor most commonly affects children between 5 and 10 years of age; however, adults can sometimes be affected. Craniopharyngiomas are thought to arise from remnants of the craniopharyngeal duct and/or Rathke cleft or from metaplasia (abnormal transformation of cells) of squamous epithelial cell remnants of the stomadeum.[orphanet] Craniopharyngioma is treated with surgery alone or by surgery followed by radiation. |
symptoms | What are the symptoms of Craniopharyngioma ? | What symptoms may be associated with craniopharyngioma? Craniopharyngioma causes symptoms in three different ways: by increasing the pressure on the brain (intracranial pressure) by disrupting the function of the pituitary gland by damaging the optic nerve Increased pressure on the brain causes headache, nausea, vomiting (especially in the morning), and difficulty with balance. Damage to the pituitary gland causes hormone imbalances that can lead to excessive thirst and urination (diabetes insipidus) and stunted growth. When the optic nerve is damaged by the tumor, vision problems develop. These defects are often permanent, and may be worse after surgery to remove the tumor. Most patients have at least some visual defects and evidence of decreased hormone production at the time of diagnosis. |
causes | What causes Craniopharyngioma ? | What causes craniopharyngioma? Craniopharyngiomas are thought to arise from epithelial remnants of the craniopharyngeal duct or Rathke's pouch (adamantinomatous type tumours) or from metaplasia of squamous epithelial cell rests that are remnants of the part of the stomadeum that contributed to the buccal mucosa (squamous papillary type tumours). |
treatment | What are the treatments for Craniopharyngioma ? | How might craniopharyngiomas be treated? Traditionally, surgery has been the main treatment for craniopharyngioma. However, radiation treatment instead of surgery may be the best choice for some patients. In tumors that cannot be removed completely with surgery alone, radiation therapy is usually necessary. If the tumor has a classic appearance on CT scan, then even a biopsy may not be necessary, if treatment with radiation alone is planned. This tumor is best treated at a center with experience managing craniopharyngiomas. |
symptoms | What are the symptoms of Rhizomelic syndrome ? | What are the signs and symptoms of Rhizomelic syndrome? The Human Phenotype Ontology provides the following list of signs and symptoms for Rhizomelic syndrome. If the information is available, the table below includes how often the symptom is seen in people with this condition. You can use the MedlinePlus Medical Dictionary to look up the definitions for these medical terms. Signs and Symptoms Approximate number of patients (when available) Abnormal form of the vertebral bodies 90% Abnormal hair quantity 90% Abnormality of epiphysis morphology 90% Abnormality of the elbow 90% Abnormality of the fontanelles or cranial sutures 90% Abnormality of the hip bone 90% Abnormality of the humerus 90% Abnormality of the knees 90% Abnormality of the pulmonary artery 90% Abnormality of the tongue 90% Acne 90% Brachydactyly syndrome 90% Cognitive impairment 90% Depressed nasal bridge 90% Limb undergrowth 90% Limitation of joint mobility 90% Microcephaly 90% Preaxial hand polydactyly 90% Short distal phalanx of finger 90% Short neck 90% Short stature 90% Triphalangeal thumb 90% Cleft palate 50% Kyphosis 50% Autosomal recessive inheritance - Bifid distal phalanx of the thumb - Complete duplication of thumb phalanx - Hip dislocation - Pulmonic stenosis - Rhizomelia - Wide anterior fontanel - The Human Phenotype Ontology (HPO) has collected information on how often a sign or symptom occurs in a condition. Much of this information comes from Orphanet, a European rare disease database. The frequency of a sign or symptom is usually listed as a rough estimate of the percentage of patients who have that feature. The frequency may also be listed as a fraction. The first number of the fraction is how many people had the symptom, and the second number is the total number of people who were examined in one study. For example, a frequency of 25/25 means that in a study of 25 people all patients were found to have that symptom. Because these frequencies are based on a specific study, the fractions may be different if another group of patients are examined. Sometimes, no information on frequency is available. In these cases, the sign or symptom may be rare or common. |
symptoms | What are the symptoms of Spinocerebellar ataxia 21 ? | What are the signs and symptoms of Spinocerebellar ataxia 21? The Human Phenotype Ontology provides the following list of signs and symptoms for Spinocerebellar ataxia 21. If the information is available, the table below includes how often the symptom is seen in people with this condition. You can use the MedlinePlus Medical Dictionary to look up the definitions for these medical terms. Signs and Symptoms Approximate number of patients (when available) Nystagmus 5% Aggressive behavior - Akinesia - Apathy - Autosomal dominant inheritance - Cerebellar atrophy - Cognitive impairment - Cogwheel rigidity - Dysarthria - Dysgraphia - Gait ataxia - Hyporeflexia - Impulsivity - Intellectual disability - Limb ataxia - Microsaccadic pursuit - Parkinsonism - Postural tremor - Progressive cerebellar ataxia - Scanning speech - Slow progression - Slow saccadic eye movements - The Human Phenotype Ontology (HPO) has collected information on how often a sign or symptom occurs in a condition. Much of this information comes from Orphanet, a European rare disease database. The frequency of a sign or symptom is usually listed as a rough estimate of the percentage of patients who have that feature. The frequency may also be listed as a fraction. The first number of the fraction is how many people had the symptom, and the second number is the total number of people who were examined in one study. For example, a frequency of 25/25 means that in a study of 25 people all patients were found to have that symptom. Because these frequencies are based on a specific study, the fractions may be different if another group of patients are examined. Sometimes, no information on frequency is available. In these cases, the sign or symptom may be rare or common. |
symptoms | What are the symptoms of 19p13.12 microdeletion syndrome ? | What are the signs and symptoms of 19p13.12 microdeletion syndrome? The Human Phenotype Ontology provides the following list of signs and symptoms for 19p13.12 microdeletion syndrome. If the information is available, the table below includes how often the symptom is seen in people with this condition. You can use the MedlinePlus Medical Dictionary to look up the definitions for these medical terms. Signs and Symptoms Approximate number of patients (when available) Cognitive impairment 90% Neurological speech impairment 90% Anteverted nares 50% Arrhythmia 50% Atria septal defect 50% Attention deficit hyperactivity disorder 50% Brachydactyly syndrome 50% Broad forehead 50% Clinodactyly of the 5th finger 50% Epicanthus 50% Intrauterine growth retardation 50% Long philtrum 50% Low-set, posteriorly rotated ears 50% Microcephaly 50% Muscular hypotonia 50% Narrow nasal bridge 50% Reduced number of teeth 50% Scoliosis 50% Seizures 50% Sensorineural hearing impairment 50% Short neck 50% Synophrys 50% Thin vermilion border 50% Ventriculomegaly 50% Abnormality of lipid metabolism 7.5% Abnormality of the aortic valve 7.5% Abnormality of the mitral valve 7.5% Aplasia/Hypoplasia of the cerebellum 7.5% Aplasia/Hypoplasia of the corpus callosum 7.5% Cleft palate 7.5% Conductive hearing impairment 7.5% Craniosynostosis 7.5% Cryptorchidism 7.5% Deep palmar crease 7.5% Deep plantar creases 7.5% Displacement of the external urethral meatus 7.5% Finger syndactyly 7.5% Hepatic steatosis 7.5% Hypertelorism 7.5% Hypothyroidism 7.5% Kyphosis 7.5% Myopia 7.5% Nystagmus 7.5% Obesity 7.5% Precocious puberty 7.5% Proptosis 7.5% Sandal gap 7.5% Self-injurious behavior 7.5% Strabismus 7.5% Tibial deviation of toes 7.5% Ventricular septal defect 7.5% The Human Phenotype Ontology (HPO) has collected information on how often a sign or symptom occurs in a condition. Much of this information comes from Orphanet, a European rare disease database. The frequency of a sign or symptom is usually listed as a rough estimate of the percentage of patients who have that feature. The frequency may also be listed as a fraction. The first number of the fraction is how many people had the symptom, and the second number is the total number of people who were examined in one study. For example, a frequency of 25/25 means that in a study of 25 people all patients were found to have that symptom. Because these frequencies are based on a specific study, the fractions may be different if another group of patients are examined. Sometimes, no information on frequency is available. In these cases, the sign or symptom may be rare or common. |
symptoms | What are the symptoms of Brachydactyly Mononen type ? | What are the signs and symptoms of Brachydactyly Mononen type? The Human Phenotype Ontology provides the following list of signs and symptoms for Brachydactyly Mononen type. If the information is available, the table below includes how often the symptom is seen in people with this condition. You can use the MedlinePlus Medical Dictionary to look up the definitions for these medical terms. Signs and Symptoms Approximate number of patients (when available) Micromelia 90% Short distal phalanx of finger 90% Short hallux 90% Synostosis of carpal bones 90% Tarsal synostosis 90% Abnormal dermatoglyphics 50% Abnormality of epiphysis morphology 50% Abnormality of the fingernails 50% Abnormality of the metaphyses 50% Brachydactyly syndrome 50% Clinodactyly of the 5th finger 50% Exostoses 50% Short stature 50% Symphalangism affecting the phalanges of the hand 50% Hernia of the abdominal wall 7.5% Absent distal phalanx of the 2nd toe - Aplasia of the distal phalanx of the 2nd finger - Mild short stature - Proximal fibular overgrowth - Short 1st metacarpal - Short first metatarsal - Synostosis of carpals/tarsals - X-linked dominant inheritance - The Human Phenotype Ontology (HPO) has collected information on how often a sign or symptom occurs in a condition. Much of this information comes from Orphanet, a European rare disease database. The frequency of a sign or symptom is usually listed as a rough estimate of the percentage of patients who have that feature. The frequency may also be listed as a fraction. The first number of the fraction is how many people had the symptom, and the second number is the total number of people who were examined in one study. For example, a frequency of 25/25 means that in a study of 25 people all patients were found to have that symptom. Because these frequencies are based on a specific study, the fractions may be different if another group of patients are examined. Sometimes, no information on frequency is available. In these cases, the sign or symptom may be rare or common. |
symptoms | What are the symptoms of Acrocapitofemoral dysplasia ? | What are the signs and symptoms of Acrocapitofemoral dysplasia? The Human Phenotype Ontology provides the following list of signs and symptoms for Acrocapitofemoral dysplasia. If the information is available, the table below includes how often the symptom is seen in people with this condition. You can use the MedlinePlus Medical Dictionary to look up the definitions for these medical terms. Signs and Symptoms Approximate number of patients (when available) Abnormality of the femur 90% Abnormality of the hip bone 90% Brachydactyly syndrome 90% Cone-shaped epiphysis 90% Delayed skeletal maturation 90% Micromelia 90% Short stature 90% Abnormal form of the vertebral bodies 50% Abnormality of the metacarpal bones 50% Anonychia 50% Genu varum 50% Hyperlordosis 50% Macrocephaly 7.5% Narrow chest 7.5% Pectus carinatum 7.5% Pectus excavatum 7.5% Scoliosis 7.5% Short thorax 7.5% Autosomal recessive inheritance - Broad nail - Cone-shaped capital femoral epiphysis - Cone-shaped epiphysis of the 1st metacarpal - Coxa vara - Cupped ribs - Delayed ossification of carpal bones - Disproportionate short stature - Disproportionate short-limb short stature - Dysplasia of the femoral head - Enlargement of the distal femoral epiphysis - Fibular overgrowth - Flared iliac wings - Hypoplasia of the radius - Hypoplasia of the ulna - Hypoplastic iliac wing - Lumbar hyperlordosis - Ovoid vertebral bodies - Relative macrocephaly - Short distal phalanx of finger - Short femoral neck - Short femur - Short humerus - Short metacarpal - Short palm - Short proximal phalanx of finger - Short proximal phalanx of thumb - Short ribs - Short tibia - The Human Phenotype Ontology (HPO) has collected information on how often a sign or symptom occurs in a condition. Much of this information comes from Orphanet, a European rare disease database. The frequency of a sign or symptom is usually listed as a rough estimate of the percentage of patients who have that feature. The frequency may also be listed as a fraction. The first number of the fraction is how many people had the symptom, and the second number is the total number of people who were examined in one study. For example, a frequency of 25/25 means that in a study of 25 people all patients were found to have that symptom. Because these frequencies are based on a specific study, the fractions may be different if another group of patients are examined. Sometimes, no information on frequency is available. In these cases, the sign or symptom may be rare or common. |
information | What is (are) Chromosome 12q deletion ? | Chromosome 12q deletion is a chromosome abnormality that occurs when there is a missing copy of the genetic material located on the long arm (q) of chromosome 12. The severity of the condition and the signs and symptoms depend on the size and location of the deletion and which genes are involved. Features that often occur in people with chromosome 12q deletion include developmental delay, intellectual disability, behavioral problems, and distinctive facial features. Most cases are not inherited, but people can pass the deletion on to their children. Treatment is based on the signs and symptoms present in each person. |
symptoms | What are the symptoms of Multiple epiphyseal dysplasia 1 ? | What are the signs and symptoms of Multiple epiphyseal dysplasia 1? The Human Phenotype Ontology provides the following list of signs and symptoms for Multiple epiphyseal dysplasia 1. If the information is available, the table below includes how often the symptom is seen in people with this condition. You can use the MedlinePlus Medical Dictionary to look up the definitions for these medical terms. Signs and Symptoms Approximate number of patients (when available) Abnormality of the hip bone 50% Arthralgia 50% Brachydactyly syndrome 50% Micromelia 50% Genu valgum 7.5% Genu varum 7.5% Autosomal dominant inheritance - Avascular necrosis of the capital femoral epiphysis - Broad femoral neck - Delayed epiphyseal ossification - Disproportionate short-limb short stature - Epiphyseal dysplasia - Generalized joint laxity - Hip osteoarthritis - Irregular epiphyses - Irregular vertebral endplates - Joint stiffness - Limited hip movement - Mild short stature - Ovoid vertebral bodies - Short femoral neck - Short metacarpal - Short phalanx of finger - Small epiphyses - Waddling gait - The Human Phenotype Ontology (HPO) has collected information on how often a sign or symptom occurs in a condition. Much of this information comes from Orphanet, a European rare disease database. The frequency of a sign or symptom is usually listed as a rough estimate of the percentage of patients who have that feature. The frequency may also be listed as a fraction. The first number of the fraction is how many people had the symptom, and the second number is the total number of people who were examined in one study. For example, a frequency of 25/25 means that in a study of 25 people all patients were found to have that symptom. Because these frequencies are based on a specific study, the fractions may be different if another group of patients are examined. Sometimes, no information on frequency is available. In these cases, the sign or symptom may be rare or common. |
symptoms | What are the symptoms of Deafness nephritis anorectal malformation ? | What are the signs and symptoms of Deafness nephritis anorectal malformation? The Human Phenotype Ontology provides the following list of signs and symptoms for Deafness nephritis anorectal malformation. If the information is available, the table below includes how often the symptom is seen in people with this condition. You can use the MedlinePlus Medical Dictionary to look up the definitions for these medical terms. Signs and Symptoms Approximate number of patients (when available) Anal atresia - Autosomal dominant inheritance - Rectovaginal fistula - The Human Phenotype Ontology (HPO) has collected information on how often a sign or symptom occurs in a condition. Much of this information comes from Orphanet, a European rare disease database. The frequency of a sign or symptom is usually listed as a rough estimate of the percentage of patients who have that feature. The frequency may also be listed as a fraction. The first number of the fraction is how many people had the symptom, and the second number is the total number of people who were examined in one study. For example, a frequency of 25/25 means that in a study of 25 people all patients were found to have that symptom. Because these frequencies are based on a specific study, the fractions may be different if another group of patients are examined. Sometimes, no information on frequency is available. In these cases, the sign or symptom may be rare or common. |
symptoms | What are the symptoms of Neutrophil-specific granule deficiency ? | What are the signs and symptoms of Neutrophil-specific granule deficiency? The Human Phenotype Ontology provides the following list of signs and symptoms for Neutrophil-specific granule deficiency. If the information is available, the table below includes how often the symptom is seen in people with this condition. You can use the MedlinePlus Medical Dictionary to look up the definitions for these medical terms. Signs and Symptoms Approximate number of patients (when available) Absent neutrophil specific granules - Autosomal recessive inheritance - Hyposegmentation of neutrophil nuclei - Recurrent infections - The Human Phenotype Ontology (HPO) has collected information on how often a sign or symptom occurs in a condition. Much of this information comes from Orphanet, a European rare disease database. The frequency of a sign or symptom is usually listed as a rough estimate of the percentage of patients who have that feature. The frequency may also be listed as a fraction. The first number of the fraction is how many people had the symptom, and the second number is the total number of people who were examined in one study. For example, a frequency of 25/25 means that in a study of 25 people all patients were found to have that symptom. Because these frequencies are based on a specific study, the fractions may be different if another group of patients are examined. Sometimes, no information on frequency is available. In these cases, the sign or symptom may be rare or common. |
information | What is (are) Cohen syndrome ? | Cohen syndrome is a congenital (present since birth) condition that was first described in 1973 by Dr. M.M. Cohen, Jr. When the syndrome was first described, it was believed that its main features were obesity, hypotonia (low muscle tone), intellectual disabilities, distinctive facial features with prominent upper central teeth and abnormalities of the hands and feet. Since Cohen syndrome was first described, over 100 cases have been reported worldwide. It is now known that the signs and symptoms present in people with Cohen syndrome may vary considerably. Although the exact cause of Cohen syndrome is unknown, some people with the condition have been found to have mutations in a gene called COH1 (also referred to as VPS13B). When Cohen syndrome is found to be inherited in families, it follows an autosomal recessive pattern. No cure is currently available; however, treatment for Cohen syndrome is focused on improving or alleviating signs and symptoms as they arise. |
symptoms | What are the symptoms of Cohen syndrome ? | What are the signs and symptoms of Cohen syndrome? The signs and symptoms of Cohen syndrome may vary greatly from person to person. Some studies have suggested that a large number of people with Cohen syndrome have similar facial features regardless of ethnic background, including thick hair and eyebrows, long eyelashes, wave-shaped palpebral fissures, broad nasal tip, smooth or shortened philtrum, and hypotonic appearance. Other findings that tend to be more common among almost all people with Cohen syndrome are listed below. Retinal dystrophy (a condition in which the muscles of the retina do not work properly) Progressive high myopia (nearsightedness) Acquired microcephaly (smaller than normal-sized head) Non-progressive mental retardation, global developmental delay Hypotonia Joint hyperextensibility (unusually large range of joint movement) The Human Phenotype Ontology provides the following list of signs and symptoms for Cohen syndrome. If the information is available, the table below includes how often the symptom is seen in people with this condition. You can use the MedlinePlus Medical Dictionary to look up the definitions for these medical terms. Signs and Symptoms Approximate number of patients (when available) Abnormality of neutrophils 90% Abnormality of the eyelashes 90% Abnormality of the palate 90% Aplasia/Hypoplasia of the tongue 90% Arachnodactyly 90% Chorioretinal abnormality 90% Cognitive impairment 90% Gingival overgrowth 90% Hypoplasia of the zygomatic bone 90% Long toe 90% Low anterior hairline 90% Microcephaly 90% Muscular hypotonia 90% Myopia 90% Neurological speech impairment 90% Open mouth 90% Prominent nasal bridge 90% Reduced number of teeth 90% Sandal gap 90% Short philtrum 90% Tapered finger 90% Thick eyebrow 90% Abnormality of the voice 50% Clinodactyly of the 5th finger 50% Coarse hair 50% Cubitus valgus 50% Finger syndactyly 50% Genu valgum 50% Intrauterine growth retardation 50% Joint hypermobility 50% Macrodontia 50% Obesity 50% Prenatal movement abnormality 50% Short stature 50% Abnormality of retinal pigmentation 7.5% Abnormality of the hip bone 7.5% Abnormality of the mitral valve 7.5% Aplasia/Hypoplasia affecting the eye 7.5% Aplasia/Hypoplasia of the earlobes 7.5% Cryptorchidism 7.5% Iris coloboma 7.5% Kyphosis 7.5% Nystagmus 7.5% Optic atrophy 7.5% Pectus excavatum 7.5% Preauricular skin tag 7.5% Seizures 7.5% Sensorineural hearing impairment 7.5% Strabismus 7.5% Ventricular septal defect 7.5% Autosomal recessive inheritance - Cerebellar hypoplasia - Childhood-onset truncal obesity - Chorioretinal dystrophy - Convex nasal ridge - Delayed puberty - Facial hypotonia - Feeding difficulties in infancy - Growth hormone deficiency - High, narrow palate - Hypoplasia of the maxilla - Intellectual disability - Laryngomalacia - Leukopenia - Lumbar hyperlordosis - Macrodontia of permanent maxillary central incisor - Mitral valve prolapse - Motor delay - Neonatal hypotonia - Neutropenia - Pes planus - Reduced visual acuity - Short metacarpal - Short metatarsal - Single transverse palmar crease - Small for gestational age - Thick corpus callosum - Thoracic scoliosis - Visual impairment - The Human Phenotype Ontology (HPO) has collected information on how often a sign or symptom occurs in a condition. Much of this information comes from Orphanet, a European rare disease database. The frequency of a sign or symptom is usually listed as a rough estimate of the percentage of patients who have that feature. The frequency may also be listed as a fraction. The first number of the fraction is how many people had the symptom, and the second number is the total number of people who were examined in one study. For example, a frequency of 25/25 means that in a study of 25 people all patients were found to have that symptom. Because these frequencies are based on a specific study, the fractions may be different if another group of patients are examined. Sometimes, no information on frequency is available. In these cases, the sign or symptom may be rare or common. |
exams and tests | How to diagnose Cohen syndrome ? | How is Cohen syndrome diagnosed? The diagnosis of Cohen syndrome is based on the symptoms present in the patient, but because the symptoms vary greatly from person to person, no consensus diagnostic criteria exist. Genetic testing is available for COH1, the only gene known to be associated with Cohen syndrome. However, the rate at which mutations are detected via genetic testing varies by ethnicity. For example, the mutation detection rate in COH1 is higher among the Finnish and Old Amish compared to individuals of from other populations. |
treatment | What are the treatments for Cohen syndrome ? | How is Cohen syndrome treated? There is no cure for Cohen syndrome. Treatment is focused on improving or alleviating the signs and symptoms in the patient. Typically, when a person is first diagnosed with Cohen syndrome, he or she will undergo an eye and blood examination. If vision problems are detected, early correction of the problems, usually with glasses, often leads to general improvement of cognitive skills. If neutropenia (a condition in which an abnormally low number of white blood cells called neutrophils are present, which may result in an increased risk for infections) is discovered when the blood is examined, treatment should be given. Follow-up should include annual eye exams and repeat testing of white blood cell count. Early intervention and physical, occupational, and speech therapy can address developmental delay, hypotonia, joint hyperextensibility, and motor clumsiness. |
symptoms | What are the symptoms of Pelizaeus-Merzbacher-like disease ? | What are the signs and symptoms of Pelizaeus-Merzbacher-like disease? The Human Phenotype Ontology provides the following list of signs and symptoms for Pelizaeus-Merzbacher-like disease. If the information is available, the table below includes how often the symptom is seen in people with this condition. You can use the MedlinePlus Medical Dictionary to look up the definitions for these medical terms. Signs and Symptoms Approximate number of patients (when available) Ataxia - Autosomal recessive inheritance - Babinski sign - Cerebral atrophy - Cerebral hypomyelination - Choreoathetosis - Cognitive impairment - Decreased motor nerve conduction velocity - Demyelinating motor neuropathy - Dysarthria - Dystonia - Facial palsy - Head titubation - Infantile onset - Intention tremor - Leukodystrophy - Motor delay - Muscular hypotonia of the trunk - Myopia - Optic atrophy - Poor speech - Progressive spasticity - Rigidity - Rotary nystagmus - Seizures - Sensory axonal neuropathy - Spastic paraparesis - The Human Phenotype Ontology (HPO) has collected information on how often a sign or symptom occurs in a condition. Much of this information comes from Orphanet, a European rare disease database. The frequency of a sign or symptom is usually listed as a rough estimate of the percentage of patients who have that feature. The frequency may also be listed as a fraction. The first number of the fraction is how many people had the symptom, and the second number is the total number of people who were examined in one study. For example, a frequency of 25/25 means that in a study of 25 people all patients were found to have that symptom. Because these frequencies are based on a specific study, the fractions may be different if another group of patients are examined. Sometimes, no information on frequency is available. In these cases, the sign or symptom may be rare or common. |
symptoms | What are the symptoms of Retinal cone dystrophy 3A ? | What are the signs and symptoms of Retinal cone dystrophy 3A? The Human Phenotype Ontology provides the following list of signs and symptoms for Retinal cone dystrophy 3A. If the information is available, the table below includes how often the symptom is seen in people with this condition. You can use the MedlinePlus Medical Dictionary to look up the definitions for these medical terms. Signs and Symptoms Approximate number of patients (when available) Nystagmus 5% Autosomal dominant inheritance - Autosomal recessive inheritance - Cone/cone-rod dystrophy - Dyschromatopsia - Nyctalopia - Photophobia - Progressive cone degeneration - Reduced visual acuity - The Human Phenotype Ontology (HPO) has collected information on how often a sign or symptom occurs in a condition. Much of this information comes from Orphanet, a European rare disease database. The frequency of a sign or symptom is usually listed as a rough estimate of the percentage of patients who have that feature. The frequency may also be listed as a fraction. The first number of the fraction is how many people had the symptom, and the second number is the total number of people who were examined in one study. For example, a frequency of 25/25 means that in a study of 25 people all patients were found to have that symptom. Because these frequencies are based on a specific study, the fractions may be different if another group of patients are examined. Sometimes, no information on frequency is available. In these cases, the sign or symptom may be rare or common. |
information | What is (are) Nephrocalcinosis ? | Nephrocalcinosis is a disorder in which there is excess calcium deposited in the kidneys. It is relatively common in premature infants. Individuals may be asymptomatic or have symptoms related to the condition causing nephrocalcinosis. If kidney stones are present, an individual may have blood in the urine; fever and chills; nausea and vomiting; or severe pain in the belly area, sides of the back (flank), groin, or testicles. Later symptoms related to nephrocalcinosis may be associated with chronic kidney failure. It may be caused by use of certain medications or supplements; infection; or any condition that leads to high levels of calcium in the blood or urine including hyperparathyroidism, renal tubular acidosis, Alport syndrome, Bartter syndrome, and a variety of other conditions. Some of the underlying disorders that can cause nephrocalcinosis are genetic, with the inheritance pattern depending on the specific disorder. The goal of treatment is to reduce symptoms and prevent more calcium from being deposited in the kidneys. |
causes | What causes Nephrocalcinosis ? | What causes nephrocalcinosis? Nephrocalcinosis may be caused by a variety of things, including underlying disorders or conditions, medications or supplements, and infections. Causes may include: Primary hyperparathyroidism is the single most common cause of nephrocalcinosis in adults. While nephrocalcinosis is a relatively rare complication (5%), primary hyperparathryroidism is relatively common, especially in the elderly. Rarely, hyperparathyroidism can be associated with multiple endocrine neoplasia type 1 (MEN1). Distal renal tubular acidosis (RTA) is the second most common cause of medullary nephrocalcinosis. hypervitaminosis-D states resulting from excessive treatment of hypoparathyroidism, self-administration of vitamins, and the presence of a granulomatous disease, such as sarcoidosis. Any other cause of hypercalcemia (increased calcium in the blood), particularly when associated with hypercalciuria (increased calcium in the urine). Causes include milk-alkali syndrome (due to excess ingestion of antacids), hyperparathyroidism, and malignant disease. Idiopathic hypercalciuria,a common metabolic disease, is also a known cause. Nephrocalcinosis and renal failure are increasingly being recognized as common complications of phosphate supplementation, particularly in the elderly.Phosphate supplements may contribute to renal calcifications in children with hypophosphatemic rickets. Medullary sponge kidney Rapidly progressive osteoporosis due to immobilization, menopause, aging, or steroids. Primary (familial) hyperoxaluria, or secondary hyperoxaluria due to increased intake of oxalates, increased absorption due to intestinal disease, or ingestion of ethylene glycol. Chronic disorders such as Bartter syndrome, primary hyperaldosteronism, Liddle syndrome, and 11-beta hydroxylase deficiency are associated with reduced urine citrate and tubular damage, leading to calcium deposits. Autosomal dominant hypophosphatemic rickets and X-linked hypophosphatemic conditions, possibly due to phosphate supplementation for the condition. Premature, sick infants have been observed to develop diffuse nephrocalcinosis, typically when exposed to diuretic therapy or prolonged O 2 therapy. Other causes may include the use of certain medications such as acetazolamide; tuberculosis of the kidney; and infections related to AIDS |
inheritance | Is Nephrocalcinosis inherited ? | Is nephrocalcinosis inherited? Nephrocalcinosis may be caused by a large variety of things, including underlying disorders, certain medications and supplements, and infections. Nephrocalcinosis itself is not inherited. However, the underlying condition that is causing nephrocalcinosis in an individual may be inherited. Some inherited conditions that may be associated with nephrocalcinosis in affected individuals are: Multiple endocrine neoplasia type 1 (MEN1) Familial distal renal tubular acidosis Chronic granulomatous disease Primary hyperoxaluria Bartter syndrome primary hyperaldosteronism Liddle syndrome 11-beta hydroxylase deficiency, a form of congenital adrenal hyperplasia (CAH) Autosomal dominant hypophosphatemic rickets and X-linked hypophosphatemic conditions |
treatment | What are the treatments for Nephrocalcinosis ? | How might nephrocalcinosis be treated? Treatment of nephrocalcinosis includes treating the underlying condition causing nephrocalcinosis, if it is known. The goal of treatment is to reduce symptoms and prevent more calcium from being deposited in the kidneys. Measures are usually taken to reduce abnormal levels of calcium, phosphate, and oxalate in the blood. Medications that cause calcium loss are typically stopped. Treatment of hypercalcemia (increased calcium levels in the blood) and hypercalcemic nephropathy typically includes adequate hydration by isotonic sodium chloride (normal saline) solution to reverse hypercalcemia and protect the kidneys. Treatment of macroscopic nephrocalcinosis (calcium deposition that is visible without magnification) may include thiazide diuretics and dietary salt restriction; potassium and magnesium supplementation; and citrate supplementation in idiopathic hypercalciuria (of unknown cause) and in distal renal tubular acidosis. Lessening of nephrocalcinosis may occur over time, but in many cases, such as when it results from primary hyperoxaluria or distal renal tubular acidosis, nephrocalcinosis is largely irreversible. Therefore, early detection and treatment are important. Individuals interested in learning about treatment options for themselves should speak with their health care provider or a nephrologist. |
information | What is (are) Hepatoblastoma ? | Hepatoblastoma is a rare malignant (cancerous) tumor of the liver that usually occurs in the first 3 years of life. In early stages of the condition, there may be no concerning signs or symptoms. As the tumor gets larger, affected children may experience a painful, abdominal lump; swelling of the abdomen; unexplained weight loss; loss of appetite; and/or nausea and vomiting. The exact underlying cause of hepatoblastoma is poorly understood. Risk factors for the tumor include prematurity with a very low birth weight, early exposure to hepatitis B infection, biliary atresia, and several different genetic conditions (i.e. Beckwith-Wiedemann syndrome, familial adenomatous polyposis, Aicardi syndrome, Glycogen storage disease, and Simpson-Golabi-Behmel syndrome). Treatment varies based on the severity of the condition but may include a combination of surgery, watchful waiting, chemotherapy, and/or radiation therapy. |
symptoms | What are the symptoms of Hepatoblastoma ? | What are the signs and symptoms of Hepatoblastoma? The Human Phenotype Ontology provides the following list of signs and symptoms for Hepatoblastoma. If the information is available, the table below includes how often the symptom is seen in people with this condition. You can use the MedlinePlus Medical Dictionary to look up the definitions for these medical terms. Signs and Symptoms Approximate number of patients (when available) Autosomal dominant inheritance - Hepatocellular carcinoma - Micronodular cirrhosis - Somatic mutation - Subacute progressive viral hepatitis - The Human Phenotype Ontology (HPO) has collected information on how often a sign or symptom occurs in a condition. Much of this information comes from Orphanet, a European rare disease database. The frequency of a sign or symptom is usually listed as a rough estimate of the percentage of patients who have that feature. The frequency may also be listed as a fraction. The first number of the fraction is how many people had the symptom, and the second number is the total number of people who were examined in one study. For example, a frequency of 25/25 means that in a study of 25 people all patients were found to have that symptom. Because these frequencies are based on a specific study, the fractions may be different if another group of patients are examined. Sometimes, no information on frequency is available. In these cases, the sign or symptom may be rare or common. |
symptoms | What are the symptoms of Partial agenesis of corpus callosum ? | What are the signs and symptoms of Partial agenesis of corpus callosum? The Human Phenotype Ontology provides the following list of signs and symptoms for Partial agenesis of corpus callosum. If the information is available, the table below includes how often the symptom is seen in people with this condition. You can use the MedlinePlus Medical Dictionary to look up the definitions for these medical terms. Signs and Symptoms Approximate number of patients (when available) Cognitive impairment 90% Seizures 90% Hypertonia 50% Microcephaly 50% Muscle weakness 50% Aganglionic megacolon 7.5% Abnormal facial shape - Cerebellar hypoplasia - Hydrocephalus - Inferior vermis hypoplasia - Intellectual disability - Partial agenesis of the corpus callosum - Spasticity - X-linked inheritance - The Human Phenotype Ontology (HPO) has collected information on how often a sign or symptom occurs in a condition. Much of this information comes from Orphanet, a European rare disease database. The frequency of a sign or symptom is usually listed as a rough estimate of the percentage of patients who have that feature. The frequency may also be listed as a fraction. The first number of the fraction is how many people had the symptom, and the second number is the total number of people who were examined in one study. For example, a frequency of 25/25 means that in a study of 25 people all patients were found to have that symptom. Because these frequencies are based on a specific study, the fractions may be different if another group of patients are examined. Sometimes, no information on frequency is available. In these cases, the sign or symptom may be rare or common. |
information | What is (are) Spinocerebellar ataxia autosomal recessive 7 ? | Spinocerebellar ataxia autosomal recessive 7, also called SCAR7, is a slowly progressive hereditary form of spinocerebellar ataxia. Symptoms of SCAR7 can include difficulty walking and writing, speech difficulties (dysarthria), limb ataxia, and a decrease in the size of a region of the brain called the cerebellum (cerebellar atrophy). Of the few reported cases in the literature, some patients also had eye involvement that included nystagmus (in voluntary eye movements) and saccadic pursuit eye movements. Out of 5 affected siblings examined in a large Dutch family, 2 became wheelchair-dependent late in life. The severity of the symptoms varies from mild to severe. SCAR7 is caused by mutations in the TPP1 gene and is inherited in an autosomal recessive manner. |
symptoms | What are the symptoms of Spinocerebellar ataxia autosomal recessive 7 ? | What are the signs and symptoms of Spinocerebellar ataxia autosomal recessive 7? The Human Phenotype Ontology provides the following list of signs and symptoms for Spinocerebellar ataxia autosomal recessive 7. If the information is available, the table below includes how often the symptom is seen in people with this condition. You can use the MedlinePlus Medical Dictionary to look up the definitions for these medical terms. Signs and Symptoms Approximate number of patients (when available) Ataxia - Autosomal recessive inheritance - Babinski sign - Cerebellar atrophy - Clumsiness - Diplopia - Dysarthria - Gait ataxia - Hypermetric saccades - Hyperreflexia - Juvenile onset - Limb ataxia - Nystagmus - Postural tremor - Saccadic smooth pursuit - Slow progression - The Human Phenotype Ontology (HPO) has collected information on how often a sign or symptom occurs in a condition. Much of this information comes from Orphanet, a European rare disease database. The frequency of a sign or symptom is usually listed as a rough estimate of the percentage of patients who have that feature. The frequency may also be listed as a fraction. The first number of the fraction is how many people had the symptom, and the second number is the total number of people who were examined in one study. For example, a frequency of 25/25 means that in a study of 25 people all patients were found to have that symptom. Because these frequencies are based on a specific study, the fractions may be different if another group of patients are examined. Sometimes, no information on frequency is available. In these cases, the sign or symptom may be rare or common. |
information | What is (are) Klinefelter syndrome ? | Klinefelter syndrome (KS) is a condition that occurs in males when they have an extra X chromosome. Some males with KS have no obvious signs or symptoms while others may have varying degrees of cognitive, social, behavioral, and learning difficulties. Adults with Klinefelter syndrome may also experience primary hypogonadism (decreased testosterone production), small testes, enlarged breast tissue (gynecomastia), tall stature, and/or infertility. KS is not inherited, but usually occurs as a random event during the formation of reproductive cells (eggs and sperm). Treatment is based on the signs and symptoms present in each person. |
symptoms | What are the symptoms of Klinefelter syndrome ? | What are the signs and symptoms of Klinefelter syndrome? The signs and symptoms of Klinefelter syndrome (KS) vary among affected people. Some men with KS have no symptoms of the condition or are only mildy affected. In these cases, they may not even know that they are affected by KS. When present, symptoms may include: Small, firm testicles Delayed or incomplete puberty Breast growth (gynecomastia) Reduced facial and body hair Infertility Tall height Abnormal body proportions (long legs, short trunk, shoulder equal to hip size) Learning disablity Speech delay Whether or not a male with KS has visible symptoms depends on many factors, including how much testosterone his body makes, if he is mosaic (with both XY and XXY cells), and his age when the condition is diagnosed and treated. The Human Phenotype Ontology provides the following list of signs and symptoms for Klinefelter syndrome. If the information is available, the table below includes how often the symptom is seen in people with this condition. You can use the MedlinePlus Medical Dictionary to look up the definitions for these medical terms. Signs and Symptoms Approximate number of patients (when available) Abnormality of chromosome segregation 90% Decreased fertility 90% Disproportionate tall stature 90% Neurological speech impairment 90% Abnormal hair quantity 50% Abnormality of movement 50% Clinodactyly of the 5th finger 50% Cryptorchidism 50% Eunuchoid habitus 50% Hypoplasia of penis 50% Long face 50% Mandibular prognathia 50% Obesity 50% Reduced bone mineral density 50% Scoliosis 50% Single transverse palmar crease 50% Venous insufficiency 50% Abnormality of calvarial morphology 7.5% Abnormality of the mitral valve 7.5% Neoplasm 7.5% Type II diabetes mellitus 7.5% The Human Phenotype Ontology (HPO) has collected information on how often a sign or symptom occurs in a condition. Much of this information comes from Orphanet, a European rare disease database. The frequency of a sign or symptom is usually listed as a rough estimate of the percentage of patients who have that feature. The frequency may also be listed as a fraction. The first number of the fraction is how many people had the symptom, and the second number is the total number of people who were examined in one study. For example, a frequency of 25/25 means that in a study of 25 people all patients were found to have that symptom. Because these frequencies are based on a specific study, the fractions may be different if another group of patients are examined. Sometimes, no information on frequency is available. In these cases, the sign or symptom may be rare or common. |
causes | What causes Klinefelter syndrome ? | What causes Klinefelter syndrome? Klinefelter syndrome usually occurs as a random event during the formation of reproductive cells (eggs and sperm). An error in cell division called nondisjunction results in a reproductive cell with an abnormal number of chromosomes. For example, an egg or sperm cell may gain one or more extra copies of the X chromosome as a result of nondisjunction. If one of these atypical reproductive cells contributes to the genetic makeup of a child, the child will have one or more extra X chromosomes in each of the body's cells. Most often, Klinefelter syndrome is caused by a single extra copy of the X chromosome, resulting in a total of 47 chromosomes per cell. Males normally have one X chromosome and one Y chromosome in each cell (46, XY), while females have two X chromosomes (46, XX). People with Klinefelter syndrome usually have two X chromosomes and one Y chromosome (47, XXY). Some people with Klinefelter syndrome have the extra X chromosome in only some of their cells; these people are said to have mosaic Klinefelter syndrome. It is estimated that about half of the time, the cell division error occurs during development of the sperm, while the remainder are due to errors in egg development. Women who have pregnancies after age 35 have a slightly increased chance of having offspring with this syndrome. The features of Klinefelter syndrome are due to the extra copies of genes on the extra X chromosome, which can alter male sexual development. |
inheritance | Is Klinefelter syndrome inherited ? | Is Klinefelter syndrome inherited? Klinefelter syndrome is not inherited, but usually occurs as a random event during the formation of reproductive cells (eggs and sperm). An error in cell division called nondisjunction can result in reproductive cells with an abnormal number of chromosomes. For example, an egg or sperm cell may gain one or more extra copies of the X chromosome as a result of nondisjunction. If one of these reproductive cells contributes to the genetic makeup of a child, the child will have one or several extra X chromosomes in each of the body's cells. |
exams and tests | How to diagnose Klinefelter syndrome ? | How is Klinefelter syndrome diagnosed? A diagnosis of Klinefelter syndrome is often suspected based on the presence of characteristic signs and symptoms. Additional testing can then be ordered to confirm the diagnosis. This generally includes a chromosomal analysis (called a karyotype). It is also possible to diagnosis Klinefelter syndrome before birth through chorionic villous sampling or amniocentesis. |
treatment | What are the treatments for Klinefelter syndrome ? | How might Klinefelter syndrome be treated? Because symptoms of Klinefelter syndrome (KS) can sometimes be very mild, many people are never diagnosed or treated. When a diagnosis is made, treatment is based on the signs and symptoms present in each person. This may include: Educational interventions - As children, many people with Klinefelter syndrome qualify for special services to help them in school. Teachers can also help by using certain methods in the classroom, such as breaking bigger tasks into small steps. Therapeutic options - A variety of therapists, such as physical, speech, occupational, behavioral, mental health, and family therapists can often help reduce or eliminate some of the symptoms of Klinefelter syndrome such as poor muscle tone; speech and language problems; or low self-confidence. Medical management - About half of people with KS have low testosterone levels, which may be raised by taking supplemental testosterone. Having a more normal testosterone level can help affected people develop bigger muscles, a deeper voice, and facial and body hair. Many healthcare providers recommend testosterone therapy when a boy reaches puberty. However, not all males with KS benefit from testosterone therapy. Some affected people may opt to have breast removal or reduction surgery. The Eunice Kennedy Shriver National Institute of Child Health and Human Development's Web site offers more specific information on the treatment and management of Klinefelter syndrome. Please click on the link to access this resource. |
information | What is (are) Periodic fever, aphthous stomatitis, pharyngitis and adenitis ? | Periodic fever, aphthous stomatitis, pharyngitis, cervical adenitis (PFAPA) is a periodic disease, which is a heterogeneous group of disorders characterized by short episodes of illness that regularly recur for several years alternated with healthy periods. PFAPA is characterized by high fevers lasting three to six days and recurring every 21 to 28 days, accompanied by some or all of the signs noted in its name, namely mouth sores (aphthous stomatitis), sore throat (pharyngitis), and enlarged lymph nodes (cervical adenitis). The syndrome usually occurs in children younger than five years; although it has been reported in children up to 13 years. The syndrome is sporadic and non-hereditary. The course of PFAPA can be persistent for years before spontaneous, full resolution. |
symptoms | What are the symptoms of Periodic fever, aphthous stomatitis, pharyngitis and adenitis ? | What are the signs and symptoms of Periodic fever, aphthous stomatitis, pharyngitis and adenitis? The Human Phenotype Ontology provides the following list of signs and symptoms for Periodic fever, aphthous stomatitis, pharyngitis and adenitis. If the information is available, the table below includes how often the symptom is seen in people with this condition. You can use the MedlinePlus Medical Dictionary to look up the definitions for these medical terms. Signs and Symptoms Approximate number of patients (when available) Abnormality of temperature regulation 90% Abnormality of the oral cavity 90% Arthralgia 90% Behavioral abnormality 90% Encephalitis 90% Lymphadenopathy 90% Migraine 90% Recurrent pharyngitis 90% Weight loss 90% Abdominal pain 7.5% Arthritis 7.5% Hepatomegaly 7.5% Malabsorption 7.5% Nausea and vomiting 7.5% Splenomegaly 7.5% The Human Phenotype Ontology (HPO) has collected information on how often a sign or symptom occurs in a condition. Much of this information comes from Orphanet, a European rare disease database. The frequency of a sign or symptom is usually listed as a rough estimate of the percentage of patients who have that feature. The frequency may also be listed as a fraction. The first number of the fraction is how many people had the symptom, and the second number is the total number of people who were examined in one study. For example, a frequency of 25/25 means that in a study of 25 people all patients were found to have that symptom. Because these frequencies are based on a specific study, the fractions may be different if another group of patients are examined. Sometimes, no information on frequency is available. In these cases, the sign or symptom may be rare or common. |
causes | What causes Periodic fever, aphthous stomatitis, pharyngitis and adenitis ? | What causes periodic fever, aphthous stomatitis, pharyngitis, cervical adenitis (PFAPA)? The cause of PFAPA is unknown, although viral or autoimmune causes have been suggested. |
exams and tests | How to diagnose Periodic fever, aphthous stomatitis, pharyngitis and adenitis ? | How is periodic fever, aphthous stomatitis, pharyngitis, cervical adenitis (PFAPA) diagnosed? There are no laboratory tests or imaging procedures specific to the diagnosis of PFAPA. This condition is clinically diagnosed in individuals who have a history of 3 or more episodes of fevers that last up to 5 days and recur at regular intervals without other evidence of acute illness. Pharyngitis (sore throat) plus adenopathy (swollen lymph nodes) or aphthous ulcers (canker sores) are also noted. Blood tests like white blood cell count, C-reactive protein, and erythrocyte sedimentation rate (ESR) are often elevated during an acute attack (but normal between attacks). It is important to rule out other conditions that may present with similar symptoms (for example, strep throat). The dramatic response to treatment can help to confirm the diagnosis. |
treatment | What are the treatments for Periodic fever, aphthous stomatitis, pharyngitis and adenitis ? | How might periodic fever, aphthous stomatitis, pharyngitis and cervical adenitis be treated? Treatment options that have been successful in improving symptoms of this condition include: oral steroids (prednisone or prednisolone), tonsillectomy with adenoidectomy and cimetidine. |
information | What is (are) Asperger syndrome ? | Asperger syndrome (AS) is an autism spectrum disorder, a type of neurological condition characterized by impaired language and communication skills, and repetitive or restrictive thought and behavior patterns. Unlike many people with autism, those with AS retain their early language skills. Features of AS include an obsessive interest in a particular object or topic; high vocabulary; formal speech patterns; repetitive routines or habits; inappropriate social and emotional behavior; impaired non-verbal communication; and uncoordinated motor skills. AS is likely caused by a combination of genetic and environmental influences. While autism spectrum disorders including AS sometimes run in families, no specific inheritance pattern has been recognized. |
inheritance | Is Asperger syndrome inherited ? | Is Asperger syndrome inherited? Autism spectrum disorders including Asperger syndrome sometimes "run in families," but no specific inheritance pattern has been recognized. The condition is likely caused by a combination of genetic and environmental factors, which means that not all people with a genetic predisposition will be affected. A consultation with a genetics professional is recommended for those with specific questions about genetic risks to themselves or family members. |
information | What is (are) Beta ketothiolase deficiency ? | Beta-ketothiolase deficiency is an inherited disorder in which the body cannot effectively process a protein building block (amino acid) called isoleucine. This condition also impairs the body's ability to process ketones, which are molecules produced during the breakdown of fats. Signs and symptoms typically appear between the ages of 6 months and 24 months. Affected children experience episodes of vomiting, dehydration, difficulty breathing, extreme tiredness (lethargy), and occasionally seizures. These episodes, which are called ketoacidotic attacks, sometimes lead to coma. Ketoacidotic attacks are frequently triggered by infections, periods without food (fasting), or increased intake of protein-rich foods. This condition is inherited in an autosomal recessive fashion and is caused by mutations in the ACAT1 gene. |
symptoms | What are the symptoms of Beta ketothiolase deficiency ? | What are the signs and symptoms of Beta ketothiolase deficiency? The Human Phenotype Ontology provides the following list of signs and symptoms for Beta ketothiolase deficiency. If the information is available, the table below includes how often the symptom is seen in people with this condition. You can use the MedlinePlus Medical Dictionary to look up the definitions for these medical terms. Signs and Symptoms Approximate number of patients (when available) Autosomal recessive inheritance - Dehydration - Episodic ketoacidosis - Intellectual disability - Vomiting - The Human Phenotype Ontology (HPO) has collected information on how often a sign or symptom occurs in a condition. Much of this information comes from Orphanet, a European rare disease database. The frequency of a sign or symptom is usually listed as a rough estimate of the percentage of patients who have that feature. The frequency may also be listed as a fraction. The first number of the fraction is how many people had the symptom, and the second number is the total number of people who were examined in one study. For example, a frequency of 25/25 means that in a study of 25 people all patients were found to have that symptom. Because these frequencies are based on a specific study, the fractions may be different if another group of patients are examined. Sometimes, no information on frequency is available. In these cases, the sign or symptom may be rare or common. |
symptoms | What are the symptoms of Maternal hyperphenylalaninemia ? | What are the signs and symptoms of Maternal hyperphenylalaninemia? The Human Phenotype Ontology provides the following list of signs and symptoms for Maternal hyperphenylalaninemia. If the information is available, the table below includes how often the symptom is seen in people with this condition. You can use the MedlinePlus Medical Dictionary to look up the definitions for these medical terms. Signs and Symptoms Approximate number of patients (when available) Aminoaciduria 90% Cognitive impairment 50% Aggressive behavior - Anxiety - Attention deficit hyperactivity disorder - Autosomal recessive inheritance - Blue irides - Cataract - Cerebral calcification - Dry skin - Eczema - Fair hair - Generalized hypopigmentation - Hyperphenylalaninemia - Hyperreflexia - Intellectual disability - Irritability - Maternal hyperphenylalaninemia - Microcephaly - Obsessive-compulsive behavior - Phenylpyruvic acidemia - Psychosis - Reduced phenylalanine hydroxylase activity - Scleroderma - Seizures - Self-mutilation - The Human Phenotype Ontology (HPO) has collected information on how often a sign or symptom occurs in a condition. Much of this information comes from Orphanet, a European rare disease database. The frequency of a sign or symptom is usually listed as a rough estimate of the percentage of patients who have that feature. The frequency may also be listed as a fraction. The first number of the fraction is how many people had the symptom, and the second number is the total number of people who were examined in one study. For example, a frequency of 25/25 means that in a study of 25 people all patients were found to have that symptom. Because these frequencies are based on a specific study, the fractions may be different if another group of patients are examined. Sometimes, no information on frequency is available. In these cases, the sign or symptom may be rare or common. |
information | What is (are) Stargardt disease ? | Stargardt disease is a genetic eye disorder that causes progressive vision loss. It affects the macula, an area of the retina responsible for sharp, central vision. Vision loss is due to abnormal accumulation of a fatty yellow pigment (lipofuscin) in the cells within the macula. People with Stargardt disease also have problems with night vision, and some have problems with color vision. The signs and symptoms of Stargardt disease typically appear in late childhood to early adulthood and worsen over time. It is most commonly caused by mutations in the ABCA4 gene and inherited in an autosomal recessive manner. Rarely it may be caused by mutations in other genes and inherited in an autosomal dominant manner. There is currently no treatment, but various services and devices can help affected people carry out daily activities and maintain their independence. |
symptoms | What are the symptoms of Stargardt disease ? | What are the signs and symptoms of Stargardt disease? The Human Phenotype Ontology provides the following list of signs and symptoms for Stargardt disease. If the information is available, the table below includes how often the symptom is seen in people with this condition. You can use the MedlinePlus Medical Dictionary to look up the definitions for these medical terms. Signs and Symptoms Approximate number of patients (when available) Bull's eye maculopathy 15/15 Autosomal recessive inheritance - Macular degeneration - Retinitis pigmentosa inversa - The Human Phenotype Ontology (HPO) has collected information on how often a sign or symptom occurs in a condition. Much of this information comes from Orphanet, a European rare disease database. The frequency of a sign or symptom is usually listed as a rough estimate of the percentage of patients who have that feature. The frequency may also be listed as a fraction. The first number of the fraction is how many people had the symptom, and the second number is the total number of people who were examined in one study. For example, a frequency of 25/25 means that in a study of 25 people all patients were found to have that symptom. Because these frequencies are based on a specific study, the fractions may be different if another group of patients are examined. Sometimes, no information on frequency is available. In these cases, the sign or symptom may be rare or common. |
inheritance | Is Stargardt disease inherited ? | How is Stargardt disease inherited? Stargardt disease is most commonly inherited in an autosomal recessive manner. This means that to be affected, a person must have a mutation in both copies of the responsible gene in each cell. Affected people inherit one mutated copy of the gene from each parent, who is referred to as a carrier. Carriers of an autosomal recessive condition typically do not have any signs or symptoms (they are unaffected). When 2 carriers of an autosomal recessive condition have children, each child has a: 25% (1 in 4) chance to be affected 50% (1 in 2) chance to be an unaffected carrier like each parent 25% chance to be unaffected and not be a carrier A person with autosomal recessive Stargardt disease will always pass one mutated copy of the gene to each of his/her children. In other words, each of his/her children will at least be a carrier. A child of an affected person can be affected if the other parent is also affected or is a carrier. In rare cases, Stargardt disease may be inherited in an autosomal dominant manner. This means that having a mutation in only one copy of the responsible gene in each cell is enough to cause features of the condition. An affected person typically inherits the mutated gene from an affected parent. When a person with a mutation that causes an autosomal dominant condition has children, each child has a 50% (1 in 2) chance to inherit that mutation. |
exams and tests | How to diagnose Stargardt disease ? | Is genetic testing available for Stargardt disease? Yes. Genetic testing may help distinguish the type of Stargardt disease a person has, and provide information about the mode of inheritance and risks to other family members. The Genetic Testing Registry (GTR) provides information about the genetic tests available for Stargardt disease. The intended audience for the GTR is health care providers and researchers. Patients and consumers with specific questions about genetic testing for this condition should speak with their ophthalmologist or a genetics professional. |
treatment | What are the treatments for Stargardt disease ? | How might Stargardt disease be treated? At present there is no cure for Stargardt disease, and there is very little that can be done to slow its progression. Wearing sunglasses to protect the eyes from UVa, UVb and bright light may be of some benefit. Animal studies have shown that taking excessive amounts of vitamin A and beta carotene could promote the additional accumulation of lipofuscin, as well as a toxic vitamin A derivative called A2E; it is typically recommended that these be avoided by individuals with Stargardt disease. There are possible treatments for Stargardt disease that are being tested, including a gene therapy treatment, which has been given orphan drug status by the European Medicines Agency (EMEA, similar to the FDA). You can read more about this treatment by clicking here. There are also clinical trials involving embryonic stem cell treatments. |
information | What is (are) Noonan syndrome ? | Noonan syndrome is a genetic disorder that causes abnormal development of multiple parts of the body. Features of Noonan syndrome may include a distinctive facial appearance, short stature, a broad or webbed neck, congenital heart defects, bleeding problems, skeletal malformations, and developmental delay. Noonan syndrome may be caused by mutations in any one of several genes including the PTPN11, KRAS, RAF1, SOS1, NRAS and BRAF genes. It is sometimes referred to as a specific subtype based on the responsible gene in an affected person. Noonan syndrome is typically inherited in an autosomal dominant manner but many cases are due to a new mutation and are not inherited from an affected parent. |
symptoms | What are the symptoms of Noonan syndrome ? | What are the signs and symptoms of Noonan syndrome? The Human Phenotype Ontology provides the following list of signs and symptoms for Noonan syndrome. If the information is available, the table below includes how often the symptom is seen in people with this condition. You can use the MedlinePlus Medical Dictionary to look up the definitions for these medical terms. Signs and Symptoms Approximate number of patients (when available) Abnormality of the helix 90% Abnormality of the nipple 90% Abnormality of the palate 90% Abnormality of the pulmonary artery 90% Abnormality of the pulmonary valve 90% Aplasia/Hypoplasia of the abdominal wall musculature 90% Cystic hygroma 90% Enlarged thorax 90% High forehead 90% Hypertelorism 90% Joint hypermobility 90% Low-set, posteriorly rotated ears 90% Malar flattening 90% Muscle weakness 90% Neurological speech impairment 90% Pectus carinatum 90% Pectus excavatum 90% Proptosis 90% Ptosis 90% Short stature 90% Thick lower lip vermilion 90% Thickened nuchal skin fold 90% Triangular face 90% Webbed neck 90% Abnormal dermatoglyphics 50% Abnormality of coagulation 50% Abnormality of the spleen 50% Abnormality of thrombocytes 50% Arrhythmia 50% Coarse hair 50% Cryptorchidism 50% Delayed skeletal maturation 50% Feeding difficulties in infancy 50% Hepatomegaly 50% Low posterior hairline 50% Muscular hypotonia 50% Scoliosis 50% Strabismus 50% Intellectual disability 25% Abnormal hair quantity 7.5% Brachydactyly syndrome 7.5% Clinodactyly of the 5th finger 7.5% Hypogonadism 7.5% Lymphedema 7.5% Melanocytic nevus 7.5% Nystagmus 7.5% Radioulnar synostosis 7.5% Sensorineural hearing impairment 7.5% Abnormal bleeding - Amegakaryocytic thrombocytopenia - Atria septal defect - Autosomal dominant inheritance - Clinodactyly - Coarctation of aorta - Cubitus valgus - Dental malocclusion - Epicanthus - Failure to thrive in infancy - Heterogeneous - High palate - Hypertrophic cardiomyopathy - Kyphoscoliosis - Male infertility - Myopia - Neurofibrosarcoma - Patent ductus arteriosus - Pectus excavatum of inferior sternum - Postnatal growth retardation - Pulmonic stenosis - Radial deviation of finger - Reduced factor XII activity - Reduced factor XIII activity - Shield chest - Short neck - Superior pectus carinatum - Synovitis - Ventricular septal defect - The Human Phenotype Ontology (HPO) has collected information on how often a sign or symptom occurs in a condition. Much of this information comes from Orphanet, a European rare disease database. The frequency of a sign or symptom is usually listed as a rough estimate of the percentage of patients who have that feature. The frequency may also be listed as a fraction. The first number of the fraction is how many people had the symptom, and the second number is the total number of people who were examined in one study. For example, a frequency of 25/25 means that in a study of 25 people all patients were found to have that symptom. Because these frequencies are based on a specific study, the fractions may be different if another group of patients are examined. Sometimes, no information on frequency is available. In these cases, the sign or symptom may be rare or common. |
inheritance | Is Noonan syndrome inherited ? | How is Noonan syndrome inherited? Noonan syndrome is inherited in an autosomal dominant manner. This means that having one changed (mutated) copy of the responsible gene in each cell is enough to cause the condition. Each child of a person with Noonan syndrome has a 50% (1 in 2) chance to inherit the condition. In some cases, the condition is inherited from an affected parent. Because the features of the condition can vary and may be very subtle, many affected adults are diagnosed only after the birth of a more obviously affected infant. In other cases, the condition is caused by a new mutation occurring for the first time in the affected person. |
treatment | What are the treatments for Noonan syndrome ? | How might Noonan syndrome be treated? Management generally focuses on the specific signs and symptoms present in each person. Treatments for the complications of Noonan syndrome (such as cardiovascular abnormalities) are generally standard and do not differ from treatment in the general population. Developmental disabilities are addressed by early intervention programs and individualized education strategies. Treatment for serious bleeding depends upon the specific factor deficiency or platelet abnormality. Growth hormone treatment increases growth velocity. More detailed information about treatment for Noonan syndrome can be viewed on the GeneReviews Web site. |
information | What is (are) Koolen de Vries syndrome ? | Koolen de Vries syndrome, formerly known as 17q21.31 microdeletion syndrome, is a condition caused by a small deletion of genetic material from chromosome 17. The deletion occurs at a location designated as q21.31. People with 17q21.31 microdeletion syndrome may have developmental delay, intellectual disability, seizures, hypotonia. distinctive facial features, and vision problems. Some affected individuals have heart defects, kidney problems, and skeletal anomalies such as foot deformities. Typically their disposition is described as cheerful, sociable, and cooperative. The exact size of the deletion varies among affected individuals, but it contains at least six genes. This deletion affects one of the two copies of chromosome 17 in each cell. The signs and symptoms of 17q21.31 microdeletion syndrome are probably related to the loss of one or more genes in this region. |
symptoms | What are the symptoms of Koolen de Vries syndrome ? | What are the signs and symptoms of Koolen de Vries syndrome? The Human Phenotype Ontology provides the following list of signs and symptoms for Koolen de Vries syndrome. If the information is available, the table below includes how often the symptom is seen in people with this condition. You can use the MedlinePlus Medical Dictionary to look up the definitions for these medical terms. Signs and Symptoms Approximate number of patients (when available) Cognitive impairment 90% Generalized hypotonia 90% Abnormality of hair texture 75% Feeding difficulties in infancy 75% High palate 75% Joint hypermobility 75% Narrow palate 75% Nasal speech 75% Prominent fingertip pads 75% Long face 74% Cryptorchidism 71% Arachnodactyly 61% Seizures 55% Abnormality of the cardiac septa 50% Aplasia/Hypoplasia of the corpus callosum 50% Blepharophimosis 50% Broad forehead 50% Bulbous nose 50% Coarse facial features 50% Conspicuously happy disposition 50% Delayed speech and language development 50% Displacement of the external urethral meatus 50% Epicanthus 50% High forehead 50% High, narrow palate 50% Hypermetropia 50% Hypopigmentation of hair 50% Macrotia 50% Microdontia 50% Neurological speech impairment 50% Overfolded helix 50% Pear-shaped nose 50% Ptosis 50% Strabismus 50% Upslanted palpebral fissure 50% Ventriculomegaly 50% Broad chin 42% Hip dislocation 33% Hip dysplasia 33% Hypotrophy of the small hand muscles 33% Kyphosis 33% Narrow palm 33% Positional foot deformity 33% Scoliosis 33% Abnormality of dental enamel 7.5% Abnormality of the aortic valve 7.5% Cataract 7.5% Cleft palate 7.5% Dry skin 7.5% Hypothyroidism 7.5% Ichthyosis 7.5% Microcephaly 7.5% Pectus excavatum 7.5% Prominent nasal bridge 7.5% Pyloric stenosis 7.5% Reduced number of teeth 7.5% Short stature 7.5% Small for gestational age 7.5% Underdeveloped nasal alae 7.5% Vesicoureteral reflux 7.5% Wide nasal bridge 7.5% Aortic dilatation 5% Hypotelorism 5% Prominent metopic ridge 5% Spondylolisthesis 5% Vertebral fusion 5% Anteverted ears - Atria septal defect - Autosomal dominant inheritance - Bicuspid aortic valve - Cleft upper lip - Contiguous gene syndrome - Eczema - Failure to thrive - Hydronephrosis - Intellectual disability - Intrauterine growth retardation - Open mouth - Poor speech - Pulmonic stenosis - Sacral dimple - Sporadic - Variable expressivity - Ventricular septal defect - Wide intermamillary distance - Widely spaced teeth - The Human Phenotype Ontology (HPO) has collected information on how often a sign or symptom occurs in a condition. Much of this information comes from Orphanet, a European rare disease database. The frequency of a sign or symptom is usually listed as a rough estimate of the percentage of patients who have that feature. The frequency may also be listed as a fraction. The first number of the fraction is how many people had the symptom, and the second number is the total number of people who were examined in one study. For example, a frequency of 25/25 means that in a study of 25 people all patients were found to have that symptom. Because these frequencies are based on a specific study, the fractions may be different if another group of patients are examined. Sometimes, no information on frequency is available. In these cases, the sign or symptom may be rare or common. |
exams and tests | How to diagnose Koolen de Vries syndrome ? | How is 17q21.31 microdeletion syndrome diagnosed? 17q21.31 microdeletion syndrome is diagnosed in individuals who have a deletion of 500,000 to 650,000 DNA building blocks (base pairs) at chromosome 17q21.31. The diagnosis can be made by various genetic testing methods, including FISH and array CGH. This condition cannot be diagnosed by traditional chromosome tests (karyotype) that look at chromosome banding patterns under the microscope because the deletion is too small to be detected. |
symptoms | What are the symptoms of Sener syndrome ? | What are the signs and symptoms of Sener syndrome? The Human Phenotype Ontology provides the following list of signs and symptoms for Sener syndrome. If the information is available, the table below includes how often the symptom is seen in people with this condition. You can use the MedlinePlus Medical Dictionary to look up the definitions for these medical terms. Signs and Symptoms Approximate number of patients (when available) Anteriorly placed anus - Chronic diarrhea - Coarse hair - Delayed eruption of permanent teeth - Eczema - Entropion - High palate - Hyperopic astigmatism - Hypertelorism - Hypodontia - Hypoplasia of the corpus callosum - Inguinal hernia - Micropenis - Microtia - Natal tooth - Patent ductus arteriosus - Perivascular spaces - Polyhydramnios - Posteriorly rotated ears - Smooth philtrum - Sporadic - Umbilical hernia - Wide anterior fontanel - Wide mouth - The Human Phenotype Ontology (HPO) has collected information on how often a sign or symptom occurs in a condition. Much of this information comes from Orphanet, a European rare disease database. The frequency of a sign or symptom is usually listed as a rough estimate of the percentage of patients who have that feature. The frequency may also be listed as a fraction. The first number of the fraction is how many people had the symptom, and the second number is the total number of people who were examined in one study. For example, a frequency of 25/25 means that in a study of 25 people all patients were found to have that symptom. Because these frequencies are based on a specific study, the fractions may be different if another group of patients are examined. Sometimes, no information on frequency is available. In these cases, the sign or symptom may be rare or common. |
symptoms | What are the symptoms of Autosomal dominant intermediate Charcot-Marie-Tooth disease type C ? | What are the signs and symptoms of Autosomal dominant intermediate Charcot-Marie-Tooth disease type C? The Human Phenotype Ontology provides the following list of signs and symptoms for Autosomal dominant intermediate Charcot-Marie-Tooth disease type C. If the information is available, the table below includes how often the symptom is seen in people with this condition. You can use the MedlinePlus Medical Dictionary to look up the definitions for these medical terms. Signs and Symptoms Approximate number of patients (when available) Abnormality of the foot - Autosomal dominant inheritance - Axonal regeneration - Distal amyotrophy - Distal muscle weakness - Distal sensory impairment - Upper limb muscle weakness - The Human Phenotype Ontology (HPO) has collected information on how often a sign or symptom occurs in a condition. Much of this information comes from Orphanet, a European rare disease database. The frequency of a sign or symptom is usually listed as a rough estimate of the percentage of patients who have that feature. The frequency may also be listed as a fraction. The first number of the fraction is how many people had the symptom, and the second number is the total number of people who were examined in one study. For example, a frequency of 25/25 means that in a study of 25 people all patients were found to have that symptom. Because these frequencies are based on a specific study, the fractions may be different if another group of patients are examined. Sometimes, no information on frequency is available. In these cases, the sign or symptom may be rare or common. |
information | What is (are) Neuroferritinopathy ? | Neuroferritinopathy is a movement disorder caused by the gradual accumulation of iron in the basal ganglia of the brain. People with neuroferritinopathy have progressive problems with movement that begin at about age 40. These movement problems can include involuntary jerking motions (chorea), rhythmic shaking (tremor), difficulty coordinating movements (ataxia), or uncontrolled tensing of muscles (dystonia). Symptoms of the disorder may be more prominent on one side of the body. Affected individuals may also have difficulty swallowing (dysphagia) and speaking (dysarthria). Intelligence is generally unaffected, but some individuals develop a gradual decline in thinking and reasoning abilities (dementia). Personality changes such as reduced inhibitions and difficulty controlling emotions may also occur as the disorder progresses. Neuroferritinopathy is caused by mutations in the FTL gene. It is inherited in an autosomal dominant fashion. |
symptoms | What are the symptoms of Neuroferritinopathy ? | What are the signs and symptoms of Neuroferritinopathy? The Human Phenotype Ontology provides the following list of signs and symptoms for Neuroferritinopathy. If the information is available, the table below includes how often the symptom is seen in people with this condition. You can use the MedlinePlus Medical Dictionary to look up the definitions for these medical terms. Signs and Symptoms Approximate number of patients (when available) Chorea 90% Hypertonia 90% Incoordination 90% Abnormality of eye movement 50% Feeding difficulties in infancy 50% Gait disturbance 50% Constipation 7.5% Developmental regression 7.5% Hypotension 7.5% Neurological speech impairment 7.5% Reduced consciousness/confusion 7.5% Tremor 7.5% Anarthria - Ataxia - Autosomal dominant inheritance - Babinski sign - Blepharospasm - Bradykinesia - Cavitation of the basal ganglia - Choreoathetosis - Decreased serum ferritin - Dementia - Disinhibition - Dysarthria - Dysphagia - Emotional lability - Hyperreflexia - Laryngeal dystonia - Mutism - Neurodegeneration - Parkinsonism - Phenotypic variability - Progressive - Rigidity - Spasticity - Writer's cramp - The Human Phenotype Ontology (HPO) has collected information on how often a sign or symptom occurs in a condition. Much of this information comes from Orphanet, a European rare disease database. The frequency of a sign or symptom is usually listed as a rough estimate of the percentage of patients who have that feature. The frequency may also be listed as a fraction. The first number of the fraction is how many people had the symptom, and the second number is the total number of people who were examined in one study. For example, a frequency of 25/25 means that in a study of 25 people all patients were found to have that symptom. Because these frequencies are based on a specific study, the fractions may be different if another group of patients are examined. Sometimes, no information on frequency is available. In these cases, the sign or symptom may be rare or common. |
symptoms | What are the symptoms of Spastic paraplegia facial cutaneous lesions ? | What are the signs and symptoms of Spastic paraplegia facial cutaneous lesions? The Human Phenotype Ontology provides the following list of signs and symptoms for Spastic paraplegia facial cutaneous lesions. If the information is available, the table below includes how often the symptom is seen in people with this condition. You can use the MedlinePlus Medical Dictionary to look up the definitions for these medical terms. Signs and Symptoms Approximate number of patients (when available) EEG abnormality 90% Gait disturbance 90% Hemiplegia/hemiparesis 90% Hyperreflexia 90% Hypertonia 90% Hypopigmented skin patches 90% Irregular hyperpigmentation 90% Neurological speech impairment 90% Urticaria 90% The Human Phenotype Ontology (HPO) has collected information on how often a sign or symptom occurs in a condition. Much of this information comes from Orphanet, a European rare disease database. The frequency of a sign or symptom is usually listed as a rough estimate of the percentage of patients who have that feature. The frequency may also be listed as a fraction. The first number of the fraction is how many people had the symptom, and the second number is the total number of people who were examined in one study. For example, a frequency of 25/25 means that in a study of 25 people all patients were found to have that symptom. Because these frequencies are based on a specific study, the fractions may be different if another group of patients are examined. Sometimes, no information on frequency is available. In these cases, the sign or symptom may be rare or common. |
symptoms | What are the symptoms of Mehes syndrome ? | What are the signs and symptoms of Mehes syndrome? The Human Phenotype Ontology provides the following list of signs and symptoms for Mehes syndrome. If the information is available, the table below includes how often the symptom is seen in people with this condition. You can use the MedlinePlus Medical Dictionary to look up the definitions for these medical terms. Signs and Symptoms Approximate number of patients (when available) Blepharophimosis 90% External ear malformation 90% Facial asymmetry 90% Hypertelorism 90% Low-set, posteriorly rotated ears 90% Neurological speech impairment 90% Ptosis 90% Strabismus 90% Abnormality of the palate 50% Cognitive impairment 50% Long philtrum 50% Anteverted nares 7.5% Anterior creases of earlobe - Autosomal dominant inheritance - Delayed speech and language development - Low-set ears - Specific learning disability - Unilateral narrow palpebral fissure - Unilateral ptosis - The Human Phenotype Ontology (HPO) has collected information on how often a sign or symptom occurs in a condition. Much of this information comes from Orphanet, a European rare disease database. The frequency of a sign or symptom is usually listed as a rough estimate of the percentage of patients who have that feature. The frequency may also be listed as a fraction. The first number of the fraction is how many people had the symptom, and the second number is the total number of people who were examined in one study. For example, a frequency of 25/25 means that in a study of 25 people all patients were found to have that symptom. Because these frequencies are based on a specific study, the fractions may be different if another group of patients are examined. Sometimes, no information on frequency is available. In these cases, the sign or symptom may be rare or common. |
symptoms | What are the symptoms of RHYNS syndrome ? | What are the signs and symptoms of RHYNS syndrome? The Human Phenotype Ontology provides the following list of signs and symptoms for RHYNS syndrome. If the information is available, the table below includes how often the symptom is seen in people with this condition. You can use the MedlinePlus Medical Dictionary to look up the definitions for these medical terms. Signs and Symptoms Approximate number of patients (when available) Conductive hearing impairment - Deeply set eye - Growth hormone deficiency - Nephronophthisis - Pituitary hypothyroidism - Ptosis - Renal insufficiency - Rod-cone dystrophy - Skeletal dysplasia - The Human Phenotype Ontology (HPO) has collected information on how often a sign or symptom occurs in a condition. Much of this information comes from Orphanet, a European rare disease database. The frequency of a sign or symptom is usually listed as a rough estimate of the percentage of patients who have that feature. The frequency may also be listed as a fraction. The first number of the fraction is how many people had the symptom, and the second number is the total number of people who were examined in one study. For example, a frequency of 25/25 means that in a study of 25 people all patients were found to have that symptom. Because these frequencies are based on a specific study, the fractions may be different if another group of patients are examined. Sometimes, no information on frequency is available. In these cases, the sign or symptom may be rare or common. |
symptoms | What are the symptoms of Pituitary hormone deficiency, combined 3 ? | What are the signs and symptoms of Pituitary hormone deficiency, combined 3? The Human Phenotype Ontology provides the following list of signs and symptoms for Pituitary hormone deficiency, combined 3. If the information is available, the table below includes how often the symptom is seen in people with this condition. You can use the MedlinePlus Medical Dictionary to look up the definitions for these medical terms. Signs and Symptoms Approximate number of patients (when available) Abnormality of the genital system 90% Sensorineural hearing impairment 90% Anterior pituitary hypoplasia - Autosomal recessive inheritance - Gonadotropin deficiency - Growth hormone deficiency - Intellectual disability - Pituitary dwarfism - Short neck - Short stature - The Human Phenotype Ontology (HPO) has collected information on how often a sign or symptom occurs in a condition. Much of this information comes from Orphanet, a European rare disease database. The frequency of a sign or symptom is usually listed as a rough estimate of the percentage of patients who have that feature. The frequency may also be listed as a fraction. The first number of the fraction is how many people had the symptom, and the second number is the total number of people who were examined in one study. For example, a frequency of 25/25 means that in a study of 25 people all patients were found to have that symptom. Because these frequencies are based on a specific study, the fractions may be different if another group of patients are examined. Sometimes, no information on frequency is available. In these cases, the sign or symptom may be rare or common. |
symptoms | What are the symptoms of Battaglia-Neri syndrome ? | What are the signs and symptoms of Battaglia-Neri syndrome? The Human Phenotype Ontology provides the following list of signs and symptoms for Battaglia-Neri syndrome. If the information is available, the table below includes how often the symptom is seen in people with this condition. You can use the MedlinePlus Medical Dictionary to look up the definitions for these medical terms. Signs and Symptoms Approximate number of patients (when available) Coarse facial features 90% Cognitive impairment 90% Delayed skeletal maturation 90% Hypertrichosis 90% Microcephaly 90% Scoliosis 90% Seizures 90% Autosomal recessive inheritance - Hirsutism - Intellectual disability - The Human Phenotype Ontology (HPO) has collected information on how often a sign or symptom occurs in a condition. Much of this information comes from Orphanet, a European rare disease database. The frequency of a sign or symptom is usually listed as a rough estimate of the percentage of patients who have that feature. The frequency may also be listed as a fraction. The first number of the fraction is how many people had the symptom, and the second number is the total number of people who were examined in one study. For example, a frequency of 25/25 means that in a study of 25 people all patients were found to have that symptom. Because these frequencies are based on a specific study, the fractions may be different if another group of patients are examined. Sometimes, no information on frequency is available. In these cases, the sign or symptom may be rare or common. |
symptoms | What are the symptoms of Hard skin syndrome Parana type ? | What are the signs and symptoms of Hard skin syndrome Parana type? The Human Phenotype Ontology provides the following list of signs and symptoms for Hard skin syndrome Parana type. If the information is available, the table below includes how often the symptom is seen in people with this condition. You can use the MedlinePlus Medical Dictionary to look up the definitions for these medical terms. Signs and Symptoms Approximate number of patients (when available) Generalized hyperpigmentation 90% Limitation of joint mobility 90% Respiratory insufficiency 50% Tapered finger 50% Abnormality of the nipple 7.5% Hyperkeratosis 7.5% Hypertrichosis 7.5% Pectus carinatum 7.5% Round face 7.5% Short stature 7.5% Abnormality of the abdomen - Abnormality of the skin - Autosomal recessive inheritance - Restricted chest movement - Severe postnatal growth retardation - The Human Phenotype Ontology (HPO) has collected information on how often a sign or symptom occurs in a condition. Much of this information comes from Orphanet, a European rare disease database. The frequency of a sign or symptom is usually listed as a rough estimate of the percentage of patients who have that feature. The frequency may also be listed as a fraction. The first number of the fraction is how many people had the symptom, and the second number is the total number of people who were examined in one study. For example, a frequency of 25/25 means that in a study of 25 people all patients were found to have that symptom. Because these frequencies are based on a specific study, the fractions may be different if another group of patients are examined. Sometimes, no information on frequency is available. In these cases, the sign or symptom may be rare or common. |
symptoms | What are the symptoms of Spranger Schinzel Myers syndrome ? | What are the signs and symptoms of Spranger Schinzel Myers syndrome? The Human Phenotype Ontology provides the following list of signs and symptoms for Spranger Schinzel Myers syndrome. If the information is available, the table below includes how often the symptom is seen in people with this condition. You can use the MedlinePlus Medical Dictionary to look up the definitions for these medical terms. Signs and Symptoms Approximate number of patients (when available) Ablepharon - Absent eyelashes - Agenesis of corpus callosum - Autosomal recessive inheritance - Bifid uterus - Calcaneovalgus deformity - Camptodactyly - Cataract - Cerebellar hypoplasia - Choroid plexus cyst - Cleft palate - Cleft upper lip - Clinodactyly - Cryptorchidism - Dandy-Walker malformation - Decreased fetal movement - Finger syndactyly - Generalized edema - Hydranencephaly - Hypertelorism - Intrauterine growth retardation - Joint contracture of the hand - Lissencephaly - Macrotia - Microcephaly - Micromelia - Microphthalmia - Patent ductus arteriosus - Patent foramen ovale - Polyhydramnios - Proptosis - Pterygium - Pulmonary hypoplasia - Radial deviation of finger - Renal agenesis - Rocker bottom foot - Short neck - Short umbilical cord - Sloping forehead - Small placenta - Spina bifida - Stillbirth - Thick lower lip vermilion - Toe syndactyly - Transposition of the great arteries - Ventricular septal defect - Yellow subcutaneous tissue covered by thin, scaly skin - The Human Phenotype Ontology (HPO) has collected information on how often a sign or symptom occurs in a condition. Much of this information comes from Orphanet, a European rare disease database. The frequency of a sign or symptom is usually listed as a rough estimate of the percentage of patients who have that feature. The frequency may also be listed as a fraction. The first number of the fraction is how many people had the symptom, and the second number is the total number of people who were examined in one study. For example, a frequency of 25/25 means that in a study of 25 people all patients were found to have that symptom. Because these frequencies are based on a specific study, the fractions may be different if another group of patients are examined. Sometimes, no information on frequency is available. In these cases, the sign or symptom may be rare or common. |
information | What is (are) Primary Familial Brain Calcification ? | Primary familial brain calcification (PFBC) is a neurodegenerative disorder characterized by calcium deposits in the basal ganglia, a part of the brain that helps start and control movement. The first symptoms often include clumsiness, fatigue, unsteady walking (gait), slow or slurred speech, difficulty swallowing (dysphagia) and dementia. Migraines and seizures frequently occur. Symptoms typically start in an individual's 30's to 40's but may begin at any age.The neuropsychiatric symptoms and movement disorders worsen over time. Mutations in the SLC20A2, PDGFRB, and PDGFB genes have been found to cause PFBC. This condition is inherited in an autosomal dominant manner. |
symptoms | What are the symptoms of Primary Familial Brain Calcification ? | What are the signs and symptoms of Primary Familial Brain Calcification? The Human Phenotype Ontology provides the following list of signs and symptoms for Primary Familial Brain Calcification. If the information is available, the table below includes how often the symptom is seen in people with this condition. You can use the MedlinePlus Medical Dictionary to look up the definitions for these medical terms. Signs and Symptoms Approximate number of patients (when available) Abnormality of neuronal migration 90% Cerebral calcification 90% Hepatomegaly 90% Intrauterine growth retardation 90% Microcephaly 90% Seizures 90% Subcutaneous hemorrhage 90% Thrombocytopenia 90% Ventriculomegaly 90% Opacification of the corneal stroma 50% Abnormal pyramidal signs 5% Adult onset - Athetosis - Autosomal dominant inheritance - Basal ganglia calcification - Bradykinesia - Calcification of the small brain vessels - Chorea - Dense calcifications in the cerebellar dentate nucleus - Depression - Dysarthria - Dysdiadochokinesis - Dystonia - Gait disturbance - Hyperreflexia - Limb dysmetria - Mask-like facies - Memory impairment - Mental deterioration - Parkinsonism - Postural instability - Progressive - Psychosis - Rigidity - Tremor - Urinary incontinence - The Human Phenotype Ontology (HPO) has collected information on how often a sign or symptom occurs in a condition. Much of this information comes from Orphanet, a European rare disease database. The frequency of a sign or symptom is usually listed as a rough estimate of the percentage of patients who have that feature. The frequency may also be listed as a fraction. The first number of the fraction is how many people had the symptom, and the second number is the total number of people who were examined in one study. For example, a frequency of 25/25 means that in a study of 25 people all patients were found to have that symptom. Because these frequencies are based on a specific study, the fractions may be different if another group of patients are examined. Sometimes, no information on frequency is available. In these cases, the sign or symptom may be rare or common. |
causes | What causes Primary Familial Brain Calcification ? | What causes primary familial brain calcification (PFBC)? PFBC is a genetic condition. Mutations in the SLC20A2 gene are thought to cause about half of the cases of PFBC. Mutations in the PDGFRB and PDGFB genes have also been shown to cause PFBC. In some cases, the genes responsible have not yet been found. |
exams and tests | How to diagnose Primary Familial Brain Calcification ? | How is primary familial brain calcification (PFBC) diagnosed? The diagnosis of PFBC relies upon: 1) visualization of bilateral (on both sides) calcification of the basal ganglia on neuroimaging, 2) presence of progressive neurological dysfunction, 3) absence of a metabolic, infectious, toxic, or traumatic cause, and 4) a family history consistent with autosomal dominant inheritance (a person must inherit one copy of the altered gene from one parent to have the condition). Molecular genetic testing can help confirm the diagnosis. Is there genetic testing for primary familial brain calcification (PFBC) even though not all of the causitive genes are known? Genetic testing may help to confirm the diagnosis. For individuals in who a diagnosis of PFBC is being considered, other causes of brain calcification should be eliminated prior to pursuing genetic testing, particularly in simplex cases. Testing that might be done includes biochemical analysis of blood and urine, as well s analysis of cerebrospinal fluid. If no other primary cause for brain calcification is detected or if the family history is suggestive of autosomal dominant inheritance, molecular genetic testing should be considered. Sequencing of SLC20A2 should be pursued first. If no mutation is identified, deletion/duplication analysis of SLC20A2 may be considered. If no identifiable mutation or deletion in SLC20A2 is found, sequence analysis of PDGFRB and PDGFB may be considered. |
treatment | What are the treatments for Primary Familial Brain Calcification ? | How might primary familial brain calcification (PFBC) be treated? There is no standard course of treatment for PFBC. Treatment typically addresses symptoms on an individual basis. Medications may be used to improve anxiety, depression, obsessive-compulsive behaviors, and dystonia. Antiepileptic drugs (AEDs) can be prescribed for seizures. Oxybutynin may be prescribed for urinary incontinence (loss of bladder control). Surveillance typically includes yearly neurologic and neuropsychiatric assessments. |
symptoms | What are the symptoms of Athabaskan brainstem dysgenesis ? | What are the signs and symptoms of Athabaskan brainstem dysgenesis? The Human Phenotype Ontology provides the following list of signs and symptoms for Athabaskan brainstem dysgenesis. If the information is available, the table below includes how often the symptom is seen in people with this condition. You can use the MedlinePlus Medical Dictionary to look up the definitions for these medical terms. Signs and Symptoms Approximate number of patients (when available) Abnormality of brainstem morphology 100% Abnormality of eye movement 90% Abnormality of cerebral artery - Delayed gross motor development - Sensorineural hearing impairment - The Human Phenotype Ontology (HPO) has collected information on how often a sign or symptom occurs in a condition. Much of this information comes from Orphanet, a European rare disease database. The frequency of a sign or symptom is usually listed as a rough estimate of the percentage of patients who have that feature. The frequency may also be listed as a fraction. The first number of the fraction is how many people had the symptom, and the second number is the total number of people who were examined in one study. For example, a frequency of 25/25 means that in a study of 25 people all patients were found to have that symptom. Because these frequencies are based on a specific study, the fractions may be different if another group of patients are examined. Sometimes, no information on frequency is available. In these cases, the sign or symptom may be rare or common. |
symptoms | What are the symptoms of GOMBO syndrome ? | What are the signs and symptoms of GOMBO syndrome? The Human Phenotype Ontology provides the following list of signs and symptoms for GOMBO syndrome. If the information is available, the table below includes how often the symptom is seen in people with this condition. You can use the MedlinePlus Medical Dictionary to look up the definitions for these medical terms. Signs and Symptoms Approximate number of patients (when available) Abnormality of cardiovascular system morphology - Autosomal recessive inheritance - Brachydactyly syndrome - Clinodactyly - Delayed puberty - Intellectual disability, progressive - Intellectual disability, severe - Microcephaly - Microphthalmia - Radial deviation of finger - The Human Phenotype Ontology (HPO) has collected information on how often a sign or symptom occurs in a condition. Much of this information comes from Orphanet, a European rare disease database. The frequency of a sign or symptom is usually listed as a rough estimate of the percentage of patients who have that feature. The frequency may also be listed as a fraction. The first number of the fraction is how many people had the symptom, and the second number is the total number of people who were examined in one study. For example, a frequency of 25/25 means that in a study of 25 people all patients were found to have that symptom. Because these frequencies are based on a specific study, the fractions may be different if another group of patients are examined. Sometimes, no information on frequency is available. In these cases, the sign or symptom may be rare or common. |
information | What is (are) Urea cycle disorders ? | A urea cycle disorder is a genetic disorder that results in a deficiency of one of the six enzymes in the urea cycle. These enzymes are responsible for removing ammonia from the blood stream. The urea cycle involves a series of biochemical steps in which nitrogen, a waste product of protein metabolism, is changed to a compound called urea and removed from the blood. Normally, the urea is removed from the body through the urine. In urea cycle disorders, nitrogen builds up in the blood in the form of ammonia, a highly toxic substance, resulting in hyperammonemia (elevated blood ammonia). Ammonia then reaches the brain through the blood, where it can cause irreversible brain damage, coma and/or death. The onset and severity of urea cycle disorders is highly variable. The severity correlates with the amount of urea cycle enzyme function. |
symptoms | What are the symptoms of Tetralogy of fallot and glaucoma ? | What are the signs and symptoms of Tetralogy of fallot and glaucoma? The Human Phenotype Ontology provides the following list of signs and symptoms for Tetralogy of fallot and glaucoma. If the information is available, the table below includes how often the symptom is seen in people with this condition. You can use the MedlinePlus Medical Dictionary to look up the definitions for these medical terms. Signs and Symptoms Approximate number of patients (when available) Autosomal dominant inheritance - Congenital glaucoma - Tetralogy of Fallot - The Human Phenotype Ontology (HPO) has collected information on how often a sign or symptom occurs in a condition. Much of this information comes from Orphanet, a European rare disease database. The frequency of a sign or symptom is usually listed as a rough estimate of the percentage of patients who have that feature. The frequency may also be listed as a fraction. The first number of the fraction is how many people had the symptom, and the second number is the total number of people who were examined in one study. For example, a frequency of 25/25 means that in a study of 25 people all patients were found to have that symptom. Because these frequencies are based on a specific study, the fractions may be different if another group of patients are examined. Sometimes, no information on frequency is available. In these cases, the sign or symptom may be rare or common. |
symptoms | What are the symptoms of Thyrotoxic periodic paralysis ? | What are the signs and symptoms of Thyrotoxic periodic paralysis? The Human Phenotype Ontology provides the following list of signs and symptoms for Thyrotoxic periodic paralysis. If the information is available, the table below includes how often the symptom is seen in people with this condition. You can use the MedlinePlus Medical Dictionary to look up the definitions for these medical terms. Signs and Symptoms Approximate number of patients (when available) Goiter - Heterogeneous - Hyperthyroidism - Hypokalemia - Muscle weakness - Palpitations - Periodic paralysis - Rhabdomyolysis - The Human Phenotype Ontology (HPO) has collected information on how often a sign or symptom occurs in a condition. Much of this information comes from Orphanet, a European rare disease database. The frequency of a sign or symptom is usually listed as a rough estimate of the percentage of patients who have that feature. The frequency may also be listed as a fraction. The first number of the fraction is how many people had the symptom, and the second number is the total number of people who were examined in one study. For example, a frequency of 25/25 means that in a study of 25 people all patients were found to have that symptom. Because these frequencies are based on a specific study, the fractions may be different if another group of patients are examined. Sometimes, no information on frequency is available. In these cases, the sign or symptom may be rare or common. |
information | What is (are) SAPHO syndrome ? | SAPHO syndrome involves any combination of: Synovitis (inflammation of the joints), Acne, Pustulosis (thick yellow blisters containing pus) often on the palms and soles, Hyperostosis (increase in bone substance) and Osteitis (inflammation of the bones). The cause of SAPHO syndrome is unknown and treatment is focused on managing symptoms. |
symptoms | What are the symptoms of SAPHO syndrome ? | What are the signs and symptoms of SAPHO syndrome? The Human Phenotype Ontology provides the following list of signs and symptoms for SAPHO syndrome. If the information is available, the table below includes how often the symptom is seen in people with this condition. You can use the MedlinePlus Medical Dictionary to look up the definitions for these medical terms. Signs and Symptoms Approximate number of patients (when available) Bone pain 90% Chest pain 90% Hyperostosis 90% Increased bone mineral density 90% Osteolysis 90% Abnormality of the sacroiliac joint 50% Acne 50% Arthritis 50% Osteomyelitis 50% Palmoplantar pustulosis 50% Psoriasis 50% Abdominal pain 7.5% Cranial nerve paralysis 7.5% Inflammation of the large intestine 7.5% Malabsorption 7.5% Recurrent fractures 7.5% Skin rash 7.5% Skin ulcer 7.5% Thrombophlebitis 7.5% Vasculitis 7.5% The Human Phenotype Ontology (HPO) has collected information on how often a sign or symptom occurs in a condition. Much of this information comes from Orphanet, a European rare disease database. The frequency of a sign or symptom is usually listed as a rough estimate of the percentage of patients who have that feature. The frequency may also be listed as a fraction. The first number of the fraction is how many people had the symptom, and the second number is the total number of people who were examined in one study. For example, a frequency of 25/25 means that in a study of 25 people all patients were found to have that symptom. Because these frequencies are based on a specific study, the fractions may be different if another group of patients are examined. Sometimes, no information on frequency is available. In these cases, the sign or symptom may be rare or common. |
treatment | What are the treatments for SAPHO syndrome ? | How might SAPHO syndrome be treated? There is no specific treatment plan for SAPHO syndrome. It can be a chronic condition but sometimes eventually heals on its own. Joint pain may be managed with nonsteroidal anti-inflammatory drugs and prescription vitamin A is used to treat the acne. Other drugs that may be used include: Colchicine Topical corticosteroids Systemic corticosteroids Methotrexate Calcitonin Bisphosphonates Infliximab Etanercept. |
information | What is (are) Necrotizing fasciitis ? | Necrotizing fasciitis is a serious infection of the skin, subcutaneous tissue (tissue just beneath the skin) and fascia. The infection can arise suddenly and spread quickly. Necrotizing fasciitis can be caused by several different types of bacteria. Early signs include flu-like symptoms and redness and pain around the infection site. If the infection is not treated promptly, it can lead to multiple organ failure and death. As a result, prompt diagnosis and treatment is essential. Treatment typically includes intravenous antibiotics and surgery to remove infected and dead tissue. |
symptoms | What are the symptoms of Necrotizing fasciitis ? | What are the signs and symptoms of necrotizing fasciitis? Symptoms often begin within hours of an injury. Intense pain and tenderness over the affected area are often considered the hallmark symptoms of necrotizing fasciitis (NF). The pain is often described as severe and may raise suspicion of a torn muscle. Some early symptoms may be mistaken for the flu and can include fever, sore throat, stomach ache, nausea, diarrhea, chills, and general body aches. The patient may notice redness around the area which spreads quickly; the affected area can eventually become swollen, shiny, discolored, and hot to the touch. In addition, there may be ulcers or blisters. If the infection continues to spread, the patient may experience the following: dehydration, high fever, fast heart rate, and low blood pressure. Pain may actually improve as tissues and the nerves are destroyed. As the infection spreads, vital organs may be affected and the patient may become confused or delirious. If not successfully treated, NF can lead to shock and eventual death. |
causes | What causes Necrotizing fasciitis ? | What causes necrotizing fasciitis? Bacteria that can cause necrotizing fasciitis (NF) include the following: Klebsiella, Clostridium, and Escherichia coli; group A Streptococcus is the most common cause. Anyone can develop NF. Approximately 50% of necrotizing fasciitis cases caused by streptococcal bacteria occur in young and otherwise healthy individuals. Although necrotizing fasciitis most frequently develops after trauma that causes a break in the skin, it can also develop after minor trauma that occurs without a break in the skin. NF can occur as a complication of a surgical procedure; it can also occur at the site of a relatively minor injury such as an insect bite or an injection. In addition, underlying illnesses which weaken the immune system may increase the risk that a person will develop NF. Studies have even suggested a possible relationship between the use of nonsteroidal anti-inflammatory medications (NSAIDs) during varicella infections and the development of necrotizing fasciitis. |
treatment | What are the treatments for Necrotizing fasciitis ? | How might necrotizing fasciitis be treated? Accurate and prompt diagnosis, treatment with intravenous (IV) antibiotics, and surgery to remove dead tissue are all important for treating necrotizing fasciitis. Since the blood supply to the infected tissue is impaired, antibiotics cannot penetrate into the infected tissue. As a result, surgery to remove the dead, damaged, or infected tissue is the cornerstone of treatment for necrotizing fasciitis. In addition, early surgical treatment may minimize tissue loss, eliminating the need for amputation of the infected extremity. The choice of antibiotics will likely depend on the particular bacteria involved. Supplemental oxygen, fluids, and medicines may be needed to raise the blood pressure. Hyperbaric oxygen therapy and intravenous immunoglobulin may also be considered, but their use in patients with NF is considered controversial by some. |
symptoms | What are the symptoms of Eyebrows duplication of, with stretchable skin and syndactyly ? | What are the signs and symptoms of Eyebrows duplication of, with stretchable skin and syndactyly? The Human Phenotype Ontology provides the following list of signs and symptoms for Eyebrows duplication of, with stretchable skin and syndactyly. If the information is available, the table below includes how often the symptom is seen in people with this condition. You can use the MedlinePlus Medical Dictionary to look up the definitions for these medical terms. Signs and Symptoms Approximate number of patients (when available) Abnormality of calvarial morphology 90% Abnormality of the eyebrow 90% Abnormality of the eyelashes 90% Cryptorchidism 90% Finger syndactyly 90% Ptosis 90% Shagreen patch 90% 2-3 toe syndactyly - 2-4 finger syndactyly - Autosomal recessive inheritance - Hyperextensible skin of chest - Hyperextensible skin of face - Hypermobility of interphalangeal joints - Long eyelashes - Partial duplication of eyebrows - Periorbital wrinkles - The Human Phenotype Ontology (HPO) has collected information on how often a sign or symptom occurs in a condition. Much of this information comes from Orphanet, a European rare disease database. The frequency of a sign or symptom is usually listed as a rough estimate of the percentage of patients who have that feature. The frequency may also be listed as a fraction. The first number of the fraction is how many people had the symptom, and the second number is the total number of people who were examined in one study. For example, a frequency of 25/25 means that in a study of 25 people all patients were found to have that symptom. Because these frequencies are based on a specific study, the fractions may be different if another group of patients are examined. Sometimes, no information on frequency is available. In these cases, the sign or symptom may be rare or common. |
symptoms | What are the symptoms of Ehlers-Danlos syndrome, spondylocheirodysplastic type ? | What are the signs and symptoms of Ehlers-Danlos syndrome, spondylocheirodysplastic type ? The Human Phenotype Ontology provides the following list of signs and symptoms for Ehlers-Danlos syndrome, spondylocheirodysplastic type . If the information is available, the table below includes how often the symptom is seen in people with this condition. You can use the MedlinePlus Medical Dictionary to look up the definitions for these medical terms. Signs and Symptoms Approximate number of patients (when available) Blue sclerae 90% Bruising susceptibility 90% Hyperextensible skin 90% Proptosis 90% Short stature 90% Skeletal dysplasia 90% Thin skin 90% Abnormality of epiphysis morphology 50% Abnormality of the metaphyses 50% Absent palmar crease 50% Platyspondyly 50% Reduced bone mineral density 50% Skeletal muscle atrophy 50% Tapered finger 50% Flexion contracture 7.5% Autosomal recessive inheritance - Bifid uvula - Broad femoral neck - Camptodactyly of finger - Cigarette-paper scars - Delayed eruption of teeth - Dental malocclusion - Flat capital femoral epiphysis - High palate - Hypodontia - Irregular vertebral endplates - Joint laxity - Metaphyseal widening - Moderately short stature - Osteopenia - Pes planus - Short femoral neck - Short metacarpal - Short phalanx of finger - Thenar muscle atrophy - Waddling gait - The Human Phenotype Ontology (HPO) has collected information on how often a sign or symptom occurs in a condition. Much of this information comes from Orphanet, a European rare disease database. The frequency of a sign or symptom is usually listed as a rough estimate of the percentage of patients who have that feature. The frequency may also be listed as a fraction. The first number of the fraction is how many people had the symptom, and the second number is the total number of people who were examined in one study. For example, a frequency of 25/25 means that in a study of 25 people all patients were found to have that symptom. Because these frequencies are based on a specific study, the fractions may be different if another group of patients are examined. Sometimes, no information on frequency is available. In these cases, the sign or symptom may be rare or common. |
information | What is (are) Spastic diplegia cerebral palsy ? | Spastic diplegia cerebral palsy is a form of cerebral palsy, a neurological condition that usually appears in infancy or early childhood and permanently affects muscle control and coordination. Affected people have increased muscle tone which leads to spasticity (stiff or tight muscles and exaggerated reflexes) in the legs. The arm muscles are generally less affected or not affected at all. Other signs and symptoms may include delayed motor or movement milestones (i.e. rolling over, sitting, standing); walking on toes; and a "scissored" gait (style of walking). It occurs when the portion of the brain that controls movement is damaged or develops abnormally. The exact underlying cause is often unknown; however, the condition has been associated with genetic abnormalities; congenital brain malformations; maternal infections or fevers; and/or injury before, during or shortly after birth. There is no cure, and treatment options vary depending on the signs and symptoms present in each person and the severity of the condition. |