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information | What is (are) Florid cemento-osseous dysplasia ? | Florid cemento-osseous dysplasia is characterized by lesions in the upper and/or lower jaw that occur when normal bone is replaced with a mix of connective tissue and abnormal bone. It tends to affect middle aged women, particularly women of African American and Asian descent. The lesions often affect both sides of the jaw and are symmetrical. The number, size, and shape of the lesions vary. Occasionally the lesions expand and may cause discomfort, pain, or mild disfigurement. The radiographic appearance of the lesions are important for diagnosis. |
symptoms | What are the symptoms of Florid cemento-osseous dysplasia ? | What are the signs and symptoms of Florid cemento-osseous dysplasia? Usually florid cemento-osseous dysplasia causes no signs or symptoms and is identified incidentally during a radiograph taken for some other purpose. Occasionally however, the lesions expand causing discomfort, pain, and/or mild disfigurement. The Human Phenotype Ontology provides the following list of signs and symptoms for Florid cemento-osseous 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) Autosomal dominant inheritance - Cementoma - Misalignment of teeth - Multiple impacted 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. |
causes | What causes Florid cemento-osseous dysplasia ? | What causes florid cemento-osseous dysplasia? The cause of florid cemento-osseous dysplasia is not known. This condition is usually not familial (i.e., does not tend to run in families), however a rare familial form has been described in a few families. In these families the condition affected younger individuals, and the rate of lesion growth was rapid. |
exams and tests | How to diagnose Florid cemento-osseous dysplasia ? | How is florid cemento-osseous dysplasia diagnosed? Diagnosis of cemento-osseous dysplasia relies on the radiographic findings of the lesions as well as the clinical signs and symptoms. Careful assessment and examination must be made to differentiate cemento-osseous dysplasia from other lesions with similar appearance, namely Paget's disease, chronic diffuse sclerosing osteomyelitis, fibrous dysplasia, osteosarcoma, periapical cemental dysplasia. |
treatment | What are the treatments for Florid cemento-osseous dysplasia ? | How might florid cemento-osseous dysplasia be treated? In many cases florid cemento-osseous dysplasia does not require treatment, however careful follow-up may be warranted. When the condition causes discomfort, pain, or disfigurement, the treatment plan is tailored to the patient. The following article describes the treatment of florid cemento-osseous dysplasia in one patient. We recommend that you speak with your dentist to learn more about your treatment options and for referrals to local specialists. Minhas G, Hodge T, Gill DS. Orthodontic treatment and cemento-osseous dysplasia: a case report. J Orthod. 2008 Jun;35(2):90-5. You can also use the following tools to help you find specialists in your area. The Academy of General Dentistry has a tool for finding member dentists in your area. http://www.knowyourteeth.com/findadentist/ The American Association of Oral and Maxillofacial Surgeons offers the following tool for finding member oral and maxillofacial surgeons in your area. http://www.aaoms.org/findoms.php Sometimes with more rare diseases, it can be helpful to have an evaluation with a specialist at a major university hospital or academic medical center. Such facilities often have access to up-to-date testing and technology, a large group of health care providers and specialists to consult with, and research opportunities. |
information | What is (are) Frank Ter Haar syndrome ? | Frank-Ter Haar syndrome is a rare inherited condition characterized by multiple skeletal abnormalities, developmental delay, and characteristic facial features (unusually large cornea, flattened back of the head, wide fontanels, prominent forehead, widely spaced eyes, prominent eyes, full cheeks, and small chin). Less than 30 cases have been reported worldwide. Protruding ears, prominent coccyx bone (or tail bone), and congenital heart defects are also frequently present. This condition is caused by mutations in the SH3PXD2B gene and is thought to be inherited in an autosomal recessive fashion. |
symptoms | What are the symptoms of Frank Ter Haar syndrome ? | What are the signs and symptoms of Frank Ter Haar syndrome? The Human Phenotype Ontology provides the following list of signs and symptoms for Frank Ter Haar 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) Motor delay 5% Abnormality of cardiovascular system morphology - Anterior concavity of thoracic vertebrae - Bowing of the long bones - Broad clavicles - Broad nasal tip - Buphthalmos - Coarse facial features - Cortical irregularity - Delayed cranial suture closure - Dental malocclusion - Flared metaphysis - Flat occiput - Full cheeks - Gingival overgrowth - Growth delay - High palate - Hip dysplasia - Hypertelorism - Large eyes - Low-set ears - Osteopenia - Osteoporosis - Pectus excavatum - Prominent coccyx - Prominent forehead - Proptosis - Protruding ear - Short long bone - Short phalanx of finger - Talipes equinovarus - Wide anterior fontanel - Wide mouth - Wormian bones - 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 Odonto onycho dysplasia with alopecia ? | What are the signs and symptoms of Odonto onycho dysplasia with alopecia? The Human Phenotype Ontology provides the following list of signs and symptoms for Odonto onycho dysplasia with alopecia. 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 fingernails 90% Alopecia 90% Aplasia/Hypoplasia of the eyebrow 90% Hypoplastic toenails 90% Microdontia 90% Palmoplantar keratoderma 90% Reduced number of teeth 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 Waardenburg syndrome type 2B ? | What are the signs and symptoms of Waardenburg syndrome type 2B? The Human Phenotype Ontology provides the following list of signs and symptoms for Waardenburg syndrome type 2B. 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 face - Heterochromia iridis - Premature graying of hair - Sensorineural hearing impairment - White forelock - 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 3p- syndrome ? | Chromosome 3p- syndrome is a rare chromosome abnormality that occurs when there is a missing copy of the genetic material located towards the end of the short arm (p) of chromosome 3. The severity of the condition and the signs and symptoms depend on the exact size and location of the deletion and which genes are involved. Some affected people appear to have no features or mild features, while others are more severely affected. Common symptoms shared by many people with this deletion include poor growth, developmental delay, intellectual disability, distinctive facial features, autism spectrum disorder, an unusually small head (microcephaly), and poor muscle tone (hypotonia). 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 Chromosome 3p- syndrome ? | What are the signs and symptoms of Chromosome 3p- syndrome? The signs and symptoms of chromosome 3p- syndrome and the severity of the condition depend on the exact size and location of the deletion and which genes are involved. Some affected people appear to have no features or mild features, while others are more severely affected. Common symptoms shared by many people with this condition include: Growth problems both before and after birth Feeding difficulties Developmental delay Poor muscle tone (hypotonia) Intellectual disability Ptosis Distinctive facial features Microcephaly and/or unusual head shape Autism spectrum disorder Other features that may be seen include cleft palate; extra fingers and/or toes; gastrointestinal abnormalities; seizures; hearing impairment; kidney problems; and/or congenital heart defects. To read more about some of the signs and symptoms reported in people with 3p deletion syndrome, you can read Unique's disorder guide entitled '3p25 deletions.' The information in this guide is drawn partly from the published medical literature, and partly from Unique's database of members with a 3p deletion. The Human Phenotype Ontology provides the following list of signs and symptoms for Chromosome 3p- 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% Hypertelorism 90% Long philtrum 90% Ptosis 90% Short stature 90% Telecanthus 90% Abnormality of calvarial morphology 50% Cleft palate 50% Complete atrioventricular canal defect 50% Cryptorchidism 50% Downturned corners of mouth 50% Epicanthus 50% Hearing impairment 50% Intrauterine growth retardation 50% Low-set, posteriorly rotated ears 50% Microcephaly 50% Muscular hypotonia 50% Postaxial hand polydactyly 50% Abnormality of periauricular region 7.5% Anteverted nares 7.5% Aplasia/Hypoplasia of the corpus callosum 7.5% Blepharophimosis 7.5% Clinodactyly of the 5th finger 7.5% Hypertonia 7.5% Sacral dimple 7.5% Seizures 7.5% Short neck 7.5% Thin vermilion border 7.5% Triangular face 7.5% Umbilical hernia 7.5% Ventriculomegaly 7.5% Abnormal renal morphology 5% Atrioventricular canal defect 5% Macular hypoplasia 5% Prominent nasal bridge 5% Autosomal dominant inheritance - Brachycephaly - Depressed nasal bridge - Feeding difficulties - Flat occiput - High palate - Low-set ears - Periorbital fullness - Postaxial polydactyly - Postnatal growth retardation - Preauricular pit - Prominent metopic ridge - Retrognathia - Spasticity - Synophrys - Trigonocephaly - Upslanted palpebral fissure - 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 Chromosome 3p- syndrome ? | What causes chromosome 3p- syndrome? In most people with chromosome 3p- syndrome, the deletion occurs as a new mutation (called a de novo mutation) and is not inherited from a parent. De novo mutations are due to a random error that occurs during the formation of egg or sperm cells, or shortly after conception. In a few cases, the deletion is inherited from a parent. |
inheritance | Is Chromosome 3p- syndrome inherited ? | Is chromosome 3p- syndrome inherited? In most cases, chromosome 3p- syndrome occurs for the first time in the affected person (de novo mutation). However, the deletion is rarely inherited from a parent. In these cases, the deletion is passed down in an autosomal dominant manner. This means that a person with chromosome 3p- syndrome has a 50% chance with each pregnancy of passing the condition on to his or her child. In theory, it is possible for a parent to not have the deletion in their chromosomes on a blood test, but have the deletion in some of their egg or sperm cells only. This phenomenon is called germline mosaicism. In these rare cases, it would be possible to have another child with the deletion. To our knowledge, this has not been reported with chromosome 3p- syndrome. People interested in learning more about genetic risks to themselves or family members should speak with a genetics professional. |
exams and tests | How to diagnose Chromosome 3p- syndrome ? | How is chromosome 3p- syndrome diagnosed? There are several different specialized tests that can be used to diagnose a chromosome 3p- syndrome. These include: Karyotype - a karyotype is a laboratory test that produces an image of a person's chromosomes. This test can be used to diagnose large deletions. FISH - a laboratory technique that is used to detect and locate a specific DNA sequence on a chromosome. During FISH, a chromosome is exposed to a small DNA sequence called a probe that has a fluorescent molecule attached to it. The probe sequence binds to its corresponding sequence on the chromosome. This test can be used in combination with karyotyping for deletions that are too small to be seen on karyotype, alone. However, FISH is only useful if the person ordering the test suspects there is a duplication of a specific region of 3p. Array CGH - a technology that detects deletions that are too small to be seen on karyotype. |
treatment | What are the treatments for Chromosome 3p- syndrome ? | How might chromosome 3p- syndrome be treated? Because chromosome 3p- syndrome affects many different systems of the body, medical management is often provided by a team of doctors and other healthcare professionals. Treatment for this deletion varies based on the signs and symptoms present in each person. For example, children with delayed motor milestones (i.e. walking) and/or muscle problems may be referred for physical or occupational therapy. Severe feeding difficulties may be treated temporarily with a nasogastric tube or a gastrostomy tube to ensure that a baby or child gets enough nutrients. Certain medications may be prescribed to treat seizures. Special education services are often necessary for children with intellectual disability. Surgery may be required to treat certain physical abnormalities such as cleft palate or congenital heart defects, if present. Please speak to your healthcare provider if you have any questions about your personal medical management plan. |
information | What is (are) Epidermolytic ichthyosis ? | Epidermolytic ichthyosis (EI) is a rare, genetic skin disorder. It becomes apparent at birth, or shortly after birth, with reddening, scaling, and severe blistering of the skin. Hyperkeratosis (thickening of the skin) develops within months and worsens over time. Blister formation decreases, but may still occur after skin trauma or during summer months. Skin can be itchy and smelly, and prone to infection. Other features may include reduced sweating; nail abnormalities; and in severe cases, growth failure. EI is caused by changes (mutations) in the KRT1 or KRT10 genes. About half of cases are due to new mutations and are not inherited from a parent (sporadic). Other cases are usually inherited in an autosomal dominant manner, and rarely, in an autosomal recessive manner. Treatment aims at alleviating and preventing symptoms and may include topical moisturizers or medications, and antiseptic washes. |
symptoms | What are the symptoms of Epidermolytic ichthyosis ? | What are the signs and symptoms of Epidermolytic ichthyosis? The Human Phenotype Ontology provides the following list of signs and symptoms for Epidermolytic ichthyosis. 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 blistering of the skin 90% Ichthyosis 90% Weight loss 90% Melanocytic nevus 50% Conjunctival hamartoma 7.5% Palmoplantar keratoderma 7.5% Skin ulcer 7.5% Autosomal dominant inheritance - Erythroderma - Palmoplantar hyperkeratosis - Scaling 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. |
inheritance | Is Epidermolytic ichthyosis inherited ? | How is epidermolytic ichthyosis inherited? Many cases of epidermolytic ichthyosis (EI) are sporadic. This means they result from a new mutation in one of the responsible genes (KRT1 or KRT10), in people with no family history of EI. However, while people with sporadic EI did not inherit the condition from a parent, they may still pass the condition on to their children. Inherited cases of EI usually have an autosomal dominant inheritance pattern. This means that having a mutation in only one copy of KRT1 or KRT10 in each cell is enough to cause features of the condition. 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. Typically, EI due to a new mutation will follow autosomal dominant inheritance in subsequent generations. Very rarely, EI caused by mutations in the KRT10 gene is 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. |
symptoms | What are the symptoms of Spastic paraplegia 39 ? | What are the signs and symptoms of Spastic paraplegia 39? The Human Phenotype Ontology provides the following list of signs and symptoms for Spastic paraplegia 39. 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 5% Cerebellar atrophy 5% Atrophy of the spinal cord - Autosomal recessive inheritance - Babinski sign - Distal amyotrophy - Distal lower limb muscle weakness - Gait disturbance - Hyperreflexia - Progressive spastic paraplegia - 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) Fibrous dysplasia ? | Fibrous dysplasia is a skeletal disorder that is characterized by the replacement of normal bone with fibrous bone tissue. It may involve one bone (monostotic) or multiple bones (polyostotic). Fibrous dysplasia can affect any bone in the body. The most common sites are the bones in the skull and face, the long bones in the arms and legs, the pelvis, and the ribs. Though many individuals with this condition do not have any symptoms, others may have bone pain, abnormally shaped bones, or an increased risk of fractures (broken bones). This condition can occur alone or as part of a genetic disorder, such as McCune-Albright syndrome. While there is no cure for fibrous dysplasia, the symptoms can be treated. Medications known as bisphosphonates can reduce pain and surgery may be indicated for fractures or to correct misshapen bones. |
symptoms | What are the symptoms of Fibrous dysplasia ? | What are the symptoms of fibrous dysplasia? Fibrous dysplasia may cause no symptoms, mild symptoms, or severe symptoms. The most common symptoms are bone pain, bone deformities, fractures, and skin pigmentation differences (light brown spots on the skin). The problems that a person experiences depend on the specific bone(s) affected. For example, if the legs are of different lengths, they might limp when they walk; if the bones in the sinuses are affected, chronic sinus congestion may be a present. In rare cases, fibrous dysplasia is associated with abnormalities in the hormone-producing glands of the endocrine system. This may lead to precocious puberty, hyperthyroidism (excess thyroid hormone production), excess growth hormone (gigantism or acromegaly), and/or excess cortisol production (Cushing syndrome). If the face or skull bones are affected, hearing or vision loss may occur. |
causes | What causes Fibrous dysplasia ? | What causes fibrous dysplasia? The cause of fibrous dysplasia has been linked to a gene mutation that occurs after conception, in the early stages of fetal development. The mutation involves a gene that affects the cells that produce bone. People with fibrous dysplasia carry this mutation in some, but not all cells of their body. It is not well understood why the mutation occurs, but it is not inherited from a parent, nor can it be passed on to future offspring. |
treatment | What are the treatments for Fibrous dysplasia ? | How might fibrous dysplasia be treated? Unfortunately, there is no cure for fibrous dysplasia. Treatment depends on the symptoms that develop. Fractures often require surgery, but can sometimes be treated with casting or splints.] Surgery is most appropriate in cases where fractures are likely to occur, or where bones have become misshapen. Surgery may also be used to relieve pain. Medications known as bisphosphonates are also used to relieve bone pain. Other healthy strategies such as physical activity and adequate intake of calcium, phosphorus, and vitamin D are also encouraged.[ Radiation therapy is not recommended for patients with fibrous dysplasia because it is associated with an increased risk of cancerous transformation. Careful, long-term follow-up to monitor fibrous dysplasia is advised. |
information | What is (are) Familial avascular necrosis of the femoral head ? | Avascular necrosis of the femoral head (ANFH) is a degenerative condition which causes the upper ends of the thigh bones (femurs) to break down due to an inadequate blood supply and deficient bone repair. It can lead to pain and limping and cause the legs to be of unequal length. The prevalence of ANFH is unknown but around 15,000 cases are reported each year in the United States, with most cases being associated with mechanical disruption (hip trauma or surgery), hypofibrinolysis (a reduced ability to dissolve clots), steroid use, smoking, alcohol intake, hemoglobinopathies and hyperlipidemia (an increase in the amount of fat - such as cholesterol and triglycerides - in the blood). Familial forms of ANFH appear to be very rare, with only a few families reported in the medical literature. Age of onset in these familial cases ranges from 15-48 years (as opposed to between 3rd to 5th decade of life for other forms of ANFH). Transmission in familial cases is autosomal dominant and mutations in the type II collagen gene (COL2A1) have been detected in affected family members. |
symptoms | What are the symptoms of Familial avascular necrosis of the femoral head ? | What are the signs and symptoms of Familial avascular necrosis of the femoral head? The Human Phenotype Ontology provides the following list of signs and symptoms for Familial avascular necrosis of the femoral head. 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 - Avascular necrosis of the capital femoral epiphysis - 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) C1q deficiency ? | C1q deficiency is a rare disorder associated with recurrent skin lesions, chronic infections, systemic lupus erythematosus (SLE) or SLE-like diseases. It has also been associated with a kidney disease known as mesangial proliferative glomerulonephritis. C1q is a protein and together with other proteins, C1r and C1s, it forms the C1 complex. This complex is important for the activation of the complement system (a group of proteins that work with the immune system). It also disposes cells that are dead. C1q deficiency presents in 2 different forms, absent C1q protein or abnormal C1q protein. Symptoms include infections (ear infections (otitis media), meningitis, urinary tract infections, oral infections); skin lesions (small blisters (vesicles), dark patches, and atrophic areas) that get worse upon light exposure; cataracts; loss of eyelashes, eyebrows, and scalp hair; blood in urine; and glomerulonephritis. About 93% of cases are associated with systemic lupus erythematosus. It can be caused by mutations in the C1QA, C1QB or C1QC genes and is inherited in an autosomal recessive pattern. Treatment depends on the symptoms. Recently, it was shown that C1q production can be restored by allogeneic hematopoietic stem cell transplantation, a procedure in which a person receives blood-forming stem cells (cells from which all blood cells develop) from a genetically similar, but not identical donor. |
symptoms | What are the symptoms of C1q deficiency ? | What are the signs and symptoms of C1q deficiency? The Human Phenotype Ontology provides the following list of signs and symptoms for C1q 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) Membranoproliferative glomerulonephritis 7.5% Systemic lupus erythematosus 7.5% Autosomal recessive inheritance - Decreased serum complement factor I - 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) Aromatic L-amino acid decarboxylase deficiency ? | Aromatic l-amino acid decarboxylase (AADC) deficiency is an inherited condition that affects the way signals are passed between certain cells in the nervous system. Individuals affected by this condition often have severe movement disorders, abnormal eye movements, autonomic symptoms, and neurological impairment. The condition is caused by mutations in the DDC gene. It is inherited in an autosomal recessive pattern. Treatment includes a variety of medications which may result in varying levels of success in individual patients. Physical, occupational, and speech therapy may also be of benefit. |
symptoms | What are the symptoms of Aromatic L-amino acid decarboxylase deficiency ? | What are the signs and symptoms of Aromatic L-amino acid decarboxylase deficiency? Symptoms, which typically present during the first year of life, include severe developmental delay, weak muscle tone (hypotonia), muscle stiffness, difficulty moving, and involuntary writhing movements of the limbs (athetosis). This condition may also cause infants to lack energy, feed poorly, startle easily, and have sleep disturbances. Many people with AADC deficiency exprience episodes called oculogyric crises (also called "spells" or "attacks"), which are characterized by abnormal rotation of the eyeballs, extreme irritability and agitation, pain, muscle spasms, and uncontrolled movements of the head and neck.. These episodes can last for many hours and can be times of extreme concern for caregivers and family members. AADC deficiency may also affect the autonomic nervous system, which controls involuntary body processes like regulation of blood pressure and body temperature. Autonomic symptoms may include droopy eye lids (ptosis), constriction of the pupils of the eyes (miosis), inappropriate or impaired sweating, nasal congestion, drooling, reduced ability to control body temperature, low blood pressure (hypotension), gastroesophageal reflux, low blood sugar (hypoglycemia), fainting (syncope), and cardiac arrest. The signs and symptoms of AADC deficiency tend to worsen late in the day or when the individual is tired, and improve after sleep. The Human Phenotype Ontology provides the following list of signs and symptoms for Aromatic L-amino acid decarboxylase 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 face - Autosomal recessive inheritance - Babinski sign - Choreoathetosis - Constipation - Decreased CSF homovanillic acid (HVA) - Diarrhea - Emotional lability - Feeding difficulties in infancy - Gastroesophageal reflux - Hyperhidrosis - Hyperreflexia - Hypotension - Infantile onset - Intermittent hypothermia - Irritability - Limb dystonia - Limb hypertonia - Miosis - Muscular hypotonia of the trunk - Myoclonus - Ptosis - Sleep disturbance - Temperature instability - 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) Hepatic lipase deficiency ? | Hepatic lipase deficiency is a rare condition that is characterized by increased levels of certain fats (known as triglycerides and cholesterol) in the blood. Affected people may also have increased levels of high-density lipoproteins (HDLs) and decreased levels of low-density lipoproteins (LDLs), which are two molecules that help transport fats throughout the body. Hepatic lipase deficiency may be associated with an increased risk of developing atherosclerosis and/or heart disease; however, additional research is needed on the long-term outlook of people with this condition. Hepatic lipase deficiency is caused by changes (mutations) in the LIPC gene and is inherited in an autosomal recessive manner. Treatment is based on the signs and symptoms present in each person. |
symptoms | What are the symptoms of Hepatic lipase deficiency ? | What are the signs and symptoms of Hepatic lipase deficiency? The Human Phenotype Ontology provides the following list of signs and symptoms for Hepatic lipase 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) Angina pectoris - Autosomal recessive inheritance - Eruptive xanthomas - 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 gastrointestinal melanoma ? | Primary melanoma of the gastrointestinal (GI) tract refers to a melanoma starting in the stomach, intestines, salivary glands, mouth, esophagus, liver, pancreas, gallbladder, or rectum. Melanoma is a disease in which malignant (cancer) cells form in the melanocytes. Melanocytes are commonly found in the skin and are the cells that give the skin color. While it is not uncommon for melanomas to start in the skin and later spread to other parts of the body, melanomas originating in the gastrointestinal tract are rare. The most frequently reported site is in the esophagus and anorectum. |
symptoms | What are the symptoms of Primary gastrointestinal melanoma ? | What are the symptoms of primary melanoma of the small intestine? Symptoms of primary melanoma of the small intestine can vary from person to person. Symptoms tend to be non-specific including nausea, vomiting, stomachache, fatigue, hemorrhage (broken blood vessels), and anemia (low red blood cell count). |
causes | What causes Primary gastrointestinal melanoma ? | What causes primary melanoma of the small intestine? The cause of primary melanoma of the small intestine is currently unknown. Theories include that the cancer originated from a undetectable primary tumor that spontaneously (naturally) regressed on its own; that the cancer originated from a primary tumor that is so small it can not be detected using standard clinical and laboratory investigations; lastly, because melanocytes are not normally found in the stomach, a final theory is that the melanocytes are in the stomach because early melanocyte cells lost their way during the development of the baby in the womb, and that these misplaced cells later became cancerous. |
exams and tests | How to diagnose Primary gastrointestinal melanoma ? | How might primary melanoma of the small intestine be diagnosed? A variety of tests may be involved in the initial diagnosis of the tumor, including contrast radiography, endoscopy, and CT scan. The tumor is confirmed by surgical resection. Careful study of tissue samples from the tumor under a microscope will show the same immunohistochemical characteristics of skin melanomas. Once this has been established, the following are proposed diagnostic criteria for primary melanoma of the small intestine: 1. The absence of a previous or synchronously resected melanoma or atypical melanocytic lesion of the skin. 2. The absence of metastatic spread to other organs. 3. The presence of intramucosal lesions of the overlying or adjacent intestinal mucosa. |
treatment | What are the treatments for Primary gastrointestinal melanoma ? | How might primary melanoma of the small intestine be treated? Treatment of primary melanoma of the small intestine often involves the surgical resection of the tumor. We encourage you to speak with your healthcare provider to learn more about your surgical and other treatment options. |
symptoms | What are the symptoms of Limb-girdle muscular dystrophy type 1A ? | What are the signs and symptoms of Limb-girdle muscular dystrophy type 1A? The Human Phenotype Ontology provides the following list of signs and symptoms for Limb-girdle muscular dystrophy type 1A. 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 Achilles reflex - Achilles tendon contracture - Adult onset - Autosomal dominant inheritance - Elevated serum creatine phosphokinase - EMG: myopathic abnormalities - Heterogeneous - Hyporeflexia - Late-onset distal muscle weakness - Muscle fiber splitting - Muscular dystrophy - Nasal, dysarthic speech - Pelvic girdle muscle weakness - Rimmed vacuoles - Shoulder girdle muscle weakness - 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) Anophthalmia plus syndrome ? | Anophthalmia plus syndrome (APS) is a very rare syndrome that involves malformations in multiple organs of the body. The most common findings in affected individuals are anophthalmia (absence of one or both eyes) or severe microphthalmia (abnormally small eyes), and cleft lip and/or cleft palate. Other findings may include wide-set eyes (hypertelorism); low-set ears; narrowed or blocked nasal passages (choanal stenosis or atresia); sacral neural tube defect, midline abdominal wall defects, clinodactyly, eye colobomas and congenital glaucoma. It has been suggested that APS is inherited in an autosomal recessive manner, although the genetic cause has not yet been identified. |
symptoms | What are the symptoms of Anophthalmia plus syndrome ? | What are the signs and symptoms of Anophthalmia plus syndrome? Anophthalmia plus syndrome (APS) may involve malformations in multiple organs of the body including the eyes, ears, nose, face, mouth, brain, sacral vertebrae, meninges (tissue that lines the outer part of the brain and spinal cord), abdominal wall, heart, digits (fingers and toes), and endocrine system. Based on the few cases reported in the literature, it appears that all affected individuals have had anophthalmia (absence of one or both eyes) and/or microphthalmia (abnormally small eyes). It has also been estimated that approximately 89% of affected individuals have had an oral-facial cleft (such as cleft lip and/or cleft palate). Other specific findings that have been reported in more than one affected individual include wide-set eyes (hypertelorism), low-set ears, choanal stenosis or atresia (narrowing or blockage of the nasal passages), sacral neural tube defect, midline abdominal wall defects, clinodactyly (abnormally bent or curved finger), eye colobomas, and congenital glaucoma. There have been other, additional abnormalities that have only been reported in single individuals. The Human Phenotype Ontology provides the following list of signs and symptoms for Anophthalmia plus 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) Aplasia/Hypoplasia affecting the eye 90% Choanal atresia 50% Cleft palate 50% Facial cleft 50% Hypertelorism 50% Low-set, posteriorly rotated ears 50% Non-midline cleft lip 50% Aplasia/Hypoplasia of the earlobes 7.5% Aplasia/Hypoplasia of the sacrum 7.5% Blepharophimosis 7.5% Cleft eyelid 7.5% Deviation of finger 7.5% Iris coloboma 7.5% Spina bifida 7.5% Vertebral segmentation defect 7.5% Abnormality of the genitourinary system - Abnormality of the vertebral column - Anophthalmia - Autosomal recessive inheritance - Bilateral cleft lip and palate - Macrotia - Microphthalmia - 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 Anophthalmia plus syndrome ? | How is anophthalmia plus syndrome diagnosed? A review of the available medical literature does not currently yield information about specific diagnostic criteria for anophthalmia plus syndrome (APS). Because APS is so rarely reported, specific diagnostic criteria may not exist. Anophthalmia and/or microphthalmia with oral-facial clefting occurs in a number of known syndromes; however, the other known syndromes typically have specific other features (such as limb abnormalities, deafness or other organ anomalies). A diagnosis of APS may be considered when an individual has the signs and symptoms most commonly reported in affected individuals, but other known syndromes with overlapping features have been ruled out. |
information | What is (are) Chester porphyria ? | Chester porphyria is a unique type of porphyria with the signs and symptoms of acute intermittent porphyria (AIP) and the biochemical defects of both AIP and variegate porphyria (VP). Chester porphyria does not conform to any of the recognized types of acute porphyria. The symptoms associated with Chester porphyria are similar to those observed in other acute porphyrias. Treatment is symptomatic. |
information | What is (are) Trisomy 17 mosaicism ? | Trisomy 17 mosaicism is a chromosomal abnormality in which there are three copies of chromosome 17 in some cells of the body, rather than the usual two copies. Trisomy 17 mosaicism is one of the rarest trisomies in humans. It is often incorrectly called trisomy 17 (also referred to as full trisomy 17), which is when three copies of chromosome 17 are present in all cells of the body. Full trisomy 17 has never been reported in a living individual in the medical literature. Few cases of trisomy 17 mosaicism have been described, most having been detected during pregnancy through a test called amniocentesis. Only a few individuals have had a confirmed diagnosis of trisomy 17 mosaicism after birth. Because the proportion and location of cells with trisomy 17 differs from case to case, the presence and severity of signs and symptoms may vary significantly from person to person. |
causes | What causes Trisomy 17 mosaicism ? | What causes trisomy 17 mosaicism? Trisomy 17 mosaicism can arise due to errors in cell division that occur after conception. For example, at the time of conception, the fetus may actually have trisomy 17 in all of its cells; however, during cell division, some of the cells lose the extra chromosome 17. Alternatively, the fetus may initially have had only two copies of chromosome 17, but due to errors in cell division some of the cells end up with an extra copy of chromosome 17. Either of these two scenarios result in trisomy 17 mosaicism. To read more about trisomy mosaicism, visit the following links from the Medical Genetics Department at the University of British Columbia in Canada. What is mosaicism? How does trisomy mosaicism occur? |
information | What is (are) Immunotactoid glomerulopathy ? | Immunotactoid glomerulopathy, also known as glomerulonephritis with organized monoclonal microtubular immunoglobulin deposits (GOMMID), is a very uncommon cause of glomerular disease. It is related to a similar disease known as fibrillary glomerulopathy, which is more common. Both disorders probably result from deposits derived from immunoglobulins, but in most cases the cause is idiopathic (unknown). On electron microscopy, immunotactoid glomerulopathy is characterized by the formation of microtubules which are much larger than the fibrils observed in fibrillary glomerulonephritis (30 to 50 versus 16 to 24 nm in diameter). The signs and symptoms include blood (hematuria) and protein (proteinuria) in the urine, kidney insufficiency and high blood pressure. Both fibrillary glomerulonephritis and immunotactoid glomerulopathy have been associated with hepatitis C virus infection and with malignancy and autoimmune disease. Also, patients with immunotactoid glomerulopathy have a greater risk to have chronic lymphocytic leukemia and B cell lymphomas and should be screened for all of these conditions. Treatment is generally determined by the severity of the kidney problems. |
symptoms | What are the symptoms of Lethal short limb skeletal dysplasia Al Gazali type ? | What are the signs and symptoms of Lethal short limb skeletal dysplasia Al Gazali type? The Human Phenotype Ontology provides the following list of signs and symptoms for Lethal short limb skeletal dysplasia Al Gazali 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) Atresia of the external auditory canal - Autosomal recessive inheritance - Bilateral talipes equinovarus - Lethal skeletal dysplasia - Limb undergrowth - Macrocephaly - Mesomelia - Opacification of the corneal stroma - Platyspondyly - Shortening of all metacarpals - Shortening of all phalanges of fingers - Wide anterior fontanel - Wormian bones - 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 9 inversion ? | Chromosomes are the structures found in every cell of the body that contain our DNA, the instructions that tell our body what to do. Humans have 23 pairs of chromosomes, which means that each human cell contains 46 chromosomes. Each chromosome has a p and q arm; p is the short arm and q is the long arm. The p arm is always on the top and the q arm is on the bottom. Chromosome 9 inversion is when there are two breaks on chromosome 9. The segment between the breakpoints flips around and reinserts back into the same place on chromosome 9. If both breaks occur in the same arm of the chromosome, this is called a paracentric inversion. If one break occurs in the short arm and the other in the long arm of the chromosome, then this is called a pericentric inversion. Chromosome 9 inversions commonly occur as a pericentric inversion. |
symptoms | What are the symptoms of Epidermolysis bullosa simplex, localized ? | What are the signs and symptoms of Epidermolysis bullosa simplex, localized? The Human Phenotype Ontology provides the following list of signs and symptoms for Epidermolysis bullosa simplex, localized. 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 blistering of the skin 90% Bruising susceptibility 90% Hyperhidrosis 50% Hyperkeratosis 5% Milia 5% Autosomal dominant inheritance - Palmoplantar blistering - 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) Familial atrial fibrillation ? | Familial atrial fibrillation is an inherited heart condition that disrupts the heart's rhythm. It is characterized by erratic electrical activity in the heart's upper chambers (the atria), causing an irregular response in the heart's lower chambers (the ventricles). This causes a fast and irregular heartbeat (arrhythmia). Signs and symptoms may include dizziness, chest pain, palpitations, shortness of breath, or fainting. Affected people also have an increased risk of stroke and sudden death. While complications may occur at any age, some affected people never have associated health problems. Familial atrial fibrillation may be caused by changes (mutations) in any of various genes, some of which have not been identified. It is most often inherited in an autosomal dominant manner, but autosomal recessive inheritance has been reported. |
symptoms | What are the symptoms of Familial atrial fibrillation ? | What are the signs and symptoms of Familial atrial fibrillation? The Human Phenotype Ontology provides the following list of signs and symptoms for Familial atrial fibrillation. 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) Thromboembolic stroke 75% Autosomal 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. |
treatment | What are the treatments for Familial atrial fibrillation ? | How might familial atrial fibrillation be treated? We are unaware of treatment recommendations specific to familial atrial fibrillation, but there is information available about treatment for atrial fibrillation in general. Treatment for atrial fibrillation depends on the frequency and severity of symptoms and may involve medications, medical procedures, and lifestyle changes. People who don't have symptoms or related heart problems may not need treatment. The main goals of treatment include: Preventing blot clots and lowering risk of stroke. This may involve blood-thinning medications such as warfarin, dabigatran, heparin, and aspirin. Controlling the rate of contractions of the ventricles (rate control). This may involve medications to restore the heart rate to a normal level, such as beta blockers, calcium channel blockers, and digitalis. Restoring a normal heart rhythm (rhythm control). This is typically for people who don't do well with rate control treatment, or for people who recently began having symptoms. Rhythm control may involve medications or procedures and is usually begun in a hospital for monitoring. Procedures may include cardioversion, catheter ablation, or maze surgery. |
information | What is (are) Intravenous leiomyomatosis ? | Intravenous leiomyomatosis (IVL) is a benign smooth muscle tumor of the uterus that grows within the veins but does not invade the surrounding tissue. IVL usually starts in the veins of the uterus and can extend into the inferior vena cava and ultimately into the right side of the heart, resulting in death The abnormal smooth muscle cells that cause IVL express estrogen and progesterone receptors and tumor growth thus appears to respond to these hormones. Although this is a benign condition, many affected individuals require surgery to remove the excess tissue in the uterus and heart. The exact cause of IVL remains unknown. IVL is rare, with only about 200 cases reported in the medical literature. |
symptoms | What are the symptoms of Intravenous leiomyomatosis ? | What are the signs and symptoms of intravenous leiomyomatosis? IVL most often does not cause detectable signs or symptoms. In fact, they may be found by chance during surgery. When symptoms do arise, they can include abnormal uterine bleeding, lower abdominal tenderness, ad venous thrombosis. When IVL in the uterus is exposed to venous blood that flows to the heart, it usually grows slowly and may reach the heart undetected. When IVL reaches the heart, it can result in pulmonary embolisms, cardiac failure, fainting, and in some cases, sudden death. Most people do not experience symptoms until the IVL reaches the heart. |
treatment | What are the treatments for Intravenous leiomyomatosis ? | How might intravenous leiomyomatosis be treated? The mainstay of treatment for IVL is surgery to remove the tumor and its spread throughout the body. The use of anti-estrogen therapy, such as tamoxifen, has also been suggested. Surgery requires the complete removal of the tumor, since incomplete removal may result in a recurrence and hence further surgery or even death. Many affected individuals undergo a hysterectomy; bilateral oophorectomy is also suggested because these tumors are estrogen dependent. Part of a tumor left inside the pelvic veins at the time of hysterectomy can extend towards the right side of the heart, leading to obstruction and other adverse events later in life. The median time between hysterectomy to the diagnosis of IVL with cardiac involvement is 4 years. Once there is cardiac involvement, a patient may require open-heart surgery to remove the IVL from the affected areas. |
information | What is (are) Menkes disease ? | Menkes disease is a disorder that affects copper levels in the body. It is characterized by sparse, kinky hair; failure to thrive; and progressive deterioration of the nervous system. Additional signs and symptoms may be present. Children with Menkes syndrome typically begin to develop very severe symptoms during infancy. Occipital horn syndrome is one of the less severe forms of Menkes syndrome that begins in early to middle childhood. Menkes disease is caused by mutations in the ATP7A gene. It is inherited in an X-linked recessive pattern. Early treatment with copper may slightly improve the prognosis in some affected children. |
symptoms | What are the symptoms of Menkes disease ? | What are the signs and symptoms of Menkes disease? The Human Phenotype Ontology provides the following list of signs and symptoms for Menkes 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) Abnormal hair quantity 90% Abnormality of the palate 90% Aneurysm 90% Aplasia/Hypoplasia of the abdominal wall musculature 90% Developmental regression 90% Dry skin 90% Feeding difficulties in infancy 90% Full cheeks 90% Hyperextensible skin 90% Hypertonia 90% Hypopigmentation of hair 90% Intracranial hemorrhage 90% Joint hypermobility 90% Microcephaly 90% Muscular hypotonia 90% Pectus excavatum 90% Seizures 90% Umbilical hernia 90% Woolly hair 90% Abnormality of the carotid arteries 50% Abnormality of the liver 50% Arterial stenosis 50% Atypical scarring of skin 50% Behavioral abnormality 50% Cognitive impairment 50% Exostoses 50% Malabsorption 50% Mask-like facies 50% Muscle weakness 50% Narrow chest 50% Nausea and vomiting 50% Prominent occiput 50% Thickened skin 50% Venous insufficiency 50% Wormian bones 50% Bladder diverticulum 7.5% Bowing of the long bones 7.5% Chondrocalcinosis 7.5% Chorea 7.5% Gastrointestinal hemorrhage 7.5% Hypoglycemia 7.5% Hypothermia 7.5% Intrauterine growth retardation 7.5% Osteomyelitis 7.5% Recurrent fractures 7.5% Reduced bone mineral density 7.5% Sepsis 7.5% Spontaneous hematomas 7.5% Tarsal synostosis 7.5% Abnormality of the face - Brachycephaly - Cutis laxa - Death in childhood - Hypopigmentation of the skin - Intellectual disability - Joint laxity - Metaphyseal spurs - Metaphyseal widening - Osteoporosis - Short stature - Sparse hair - 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) Early infantile epileptic encephalopathy 4 ? | Early infantile epileptic encephalopathy 4 (EIEE4) is a form of early infantile epileptic encephalopathy, which refers to a group of neurological conditions characterized by severe seizures beginning in infancy. EIEE4, specifically, is often associated with partial complex or tonic-clonic seizures, although other seizure types have been reported. Other signs and symptoms may include intellectual disability, reduced muscle tone (hypotonia), hypsarrhythmia (an irregular pattern seen on EEG), dyskinesia (involuntary movement of the body), and spastic di- or quadriplegia. EIEE4 is caused by changes (mutations) in the STXBP1 gene and is inherited in an autosomal dominant manner. Treatment is based on the signs and symptoms present in each person. For example, certain medications are often prescribed to help control seizures, although they are not always effective in all people with the condition. |
symptoms | What are the symptoms of Early infantile epileptic encephalopathy 4 ? | What are the signs and symptoms of Early infantile epileptic encephalopathy 4? The Human Phenotype Ontology provides the following list of signs and symptoms for Early infantile epileptic encephalopathy 4. 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 speech - Autosomal dominant inheritance - Cerebral atrophy - Cerebral hypomyelination - Developmental regression - EEG with burst suppression - Epileptic encephalopathy - Epileptic spasms - Generalized myoclonic seizures - Generalized tonic seizures - Generalized tonic-clonic seizures - Hypoplasia of the corpus callosum - Hypsarrhythmia - Impaired horizontal smooth pursuit - Infantile encephalopathy - Intellectual disability, severe - Muscular hypotonia - Neonatal onset - Severe global developmental delay - Spastic paraplegia - Spastic tetraplegia - Status epilepticus - Tremor - 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 Hereditary vascular retinopathy ? | What are the signs and symptoms of Hereditary vascular retinopathy? The Human Phenotype Ontology provides the following list of signs and symptoms for Hereditary vascular retinopathy. 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 retinal vasculature 90% Visual impairment 90% Abnormality of movement 50% Behavioral abnormality 50% Cerebral ischemia 50% Developmental regression 50% Hematuria 50% Hemiplegia/hemiparesis 50% Migraine 50% Nephropathy 50% Neurological speech impairment 50% Proteinuria 50% Retinopathy 50% Seizures 50% Cataract 7.5% Glaucoma 7.5% Incoordination 7.5% Micronodular cirrhosis 5% Abnormality of the musculature of the lower limbs - Abnormality of the periventricular white matter - Adult onset - Apraxia - Autosomal dominant inheritance - Central nervous system degeneration - Dementia - Dysarthria - Elevated erythrocyte sedimentation rate - Elevated hepatic transaminases - Hemiparesis - Limb pain - Lower limb hyperreflexia - Macular edema - Pigmentary retinal degeneration - Progressive - Progressive forgetfulness - Progressive visual loss - Punctate vasculitis skin lesions - Retinal exudate - Retinal hemorrhage - Stroke - Telangiectasia - Vasculitis in the 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. |
symptoms | What are the symptoms of Familial ventricular tachycardia ? | What are the signs and symptoms of Familial ventricular tachycardia? The Human Phenotype Ontology provides the following list of signs and symptoms for Familial ventricular tachycardia. 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 metabolism/homeostasis - Autosomal dominant inheritance - Paroxysmal ventricular tachycardia - Sudden cardiac death - 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 Kohlschutter Tonz syndrome ? | What are the signs and symptoms of Kohlschutter Tonz syndrome? The Human Phenotype Ontology provides the following list of signs and symptoms for Kohlschutter Tonz 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 dental color 90% Abnormality of dental enamel 90% Developmental regression 90% EEG abnormality 90% Hypertonia 90% Seizures 90% Hypohidrosis 50% Hydrocephalus 7.5% Short stature 7.5% Amelogenesis imperfecta - Ataxia - Autosomal recessive inheritance - Cerebellar hypoplasia - Cerebral atrophy - Dementia - Epileptic encephalopathy - Hypoplasia of dental enamel - Hypsarrhythmia - Intellectual disability, severe - Spasticity - Variable expressivity - Ventriculomegaly - 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) Pilomatrixoma ? | Pilomatrixoma is a benign (non-cancerous) skin tumor of the hair follicle (structure in the skin that makes hair). They tend to develop in the head and neck area and are usually not associated with any other signs and symptoms (isolated). Rarely, pilomatrixomas can become cancerous (known as a pilomatrix carcinoma). Although they can occur in people of all ages, pilomatrixomas are most commonly diagnosed in people under age 20. The exact underlying cause is not well understood; however, somatic changes (mutations) in the CTNNB1 gene are found in most isolated pilomatrixomas. Rarely, pilomatrixomas occur in people with certain genetic syndromes such as Gardner syndrome, myotonic dystrophy, and Rubinstein-Taybi syndrome; in these cases, affected people usually have other characteristic signs and symptoms of the associated condition. They are usually treated with surgical excision. |
symptoms | What are the symptoms of Pilomatrixoma ? | What are the signs and symptoms of Pilomatrixoma? The Human Phenotype Ontology provides the following list of signs and symptoms for Pilomatrixoma. 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 - Pilomatrixoma - Somatic mutation - 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 Pilomatrixoma ? | What causes a pilomatrixoma? The exact underlying cause of pilomatrixoma is not well understood. Changes (mutations) in the CTNNB1 gene are found in at least 75% of isolated (without other signs and symptoms) pilomatrixomas. These mutations are somatic, which means they are not inherited and are only present in the tumor cells. The CTNNB1 gene encodes a protein that is needed to regulate cell growth and attachment. When the gene is not working properly, it can result in abnormal cell growth. Rarely, pilomatrixomas occur in people with certain genetic syndromes such as Gardner syndrome, myotonic dystrophy, and Rubinstein-Taybi syndrome. In these cases, affected people usually have other characteristic features of the associated condition. |
inheritance | Is Pilomatrixoma inherited ? | Is a pilomatrixoma inherited? Most isolated (without other signs and symptoms) pilomatrixomas are not inherited. However, more than one family member can rarely be affected, which suggests there may be a hereditary component in some cases. Rarely, pilomatrixomas occur in people with certain genetic syndromes such as Gardner syndrome, myotonic dystrophy, and Rubinstein-Taybi syndrome. In these cases, affected people usually have other characteristic signs and symptoms of the associated condition. All three of these conditions are inherited in an autosomal dominant manner. In some cases, an affected person inherits the mutation from an affected parent. Other cases may result from new (de novo) mutations in the gene. These cases occur in people with no history of the disorder in their family. |
exams and tests | How to diagnose Pilomatrixoma ? | How is a pilomatrixoma diagnosed? A diagnosis of pilomatrixoma is usually suspected on physical examination. Specialized tests may be ordered to confirm the diagnosis and rule out other conditions that cause similar features. These tests may include an ultrasound, an X-ray, and/or a small biopsy of the tumor. |
treatment | What are the treatments for Pilomatrixoma ? | How might a pilomatrixoma be treated? Pilomatrixomas are usually surgically removed (excised). In most cases, the tumors do not grow back (recur) after surgery, unless the removal was incomplete. |
symptoms | What are the symptoms of Recurrent hydatidiform mole ? | What are the signs and symptoms of Recurrent hydatidiform mole? The Human Phenotype Ontology provides the following list of signs and symptoms for Recurrent hydatidiform mole. 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 genitourinary system - Autosomal 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. |
symptoms | What are the symptoms of Dyskeratosis congenita autosomal recessive ? | What are the signs and symptoms of Dyskeratosis congenita autosomal recessive? The Human Phenotype Ontology provides the following list of signs and symptoms for Dyskeratosis congenita autosomal recessive. 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 fingernails 90% Anemia 90% Hypermelanotic macule 90% Thrombocytopenia 90% Abnormality of coagulation 50% Abnormality of female internal genitalia 50% Abnormality of the pharynx 50% Abnormality of the testis 50% Anonychia 50% Aplasia/Hypoplasia of the skin 50% Aplastic/hypoplastic toenail 50% Bone marrow hypocellularity 50% Carious teeth 50% Cellular immunodeficiency 50% Cognitive impairment 50% Hyperhidrosis 50% Hypopigmented skin patches 50% Intrauterine growth retardation 50% Malabsorption 50% Palmoplantar keratoderma 50% Recurrent fractures 50% Recurrent respiratory infections 50% Rough bone trabeculation 50% Short stature 50% Skin ulcer 50% Telangiectasia of the skin 50% Tracheoesophageal fistula 50% Abnormal blistering of the skin 7.5% Abnormality of the eyebrow 7.5% Alopecia 7.5% Aseptic necrosis 7.5% Cataract 7.5% Cerebral calcification 7.5% Cirrhosis 7.5% Diabetes mellitus 7.5% Displacement of the external urethral meatus 7.5% Hearing impairment 7.5% Hepatic failure 7.5% Hepatomegaly 7.5% Hypopigmentation of hair 7.5% Inflammatory abnormality of the eye 7.5% Lymphoma 7.5% Neoplasm of the pancreas 7.5% Premature graying of hair 7.5% Reduced bone mineral density 7.5% Scoliosis 7.5% Splenomegaly 7.5% Aplastic anemia - Autosomal recessive inheritance - Esophageal stricture - Hepatic fibrosis - Hyperpigmentation of the skin - Increased lacrimation - Intellectual disability - Microcephaly - Microdontia - Nail dysplasia - Nasolacrimal duct obstruction - Oral leukoplakia - Osteoporosis - Phenotypic variability - Pterygium formation (nails) - Pulmonary fibrosis - Small nail - Sparse eyelashes - Sparse scalp hair - 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 Fibular hypoplasia and complex brachydactyly ? | What are the signs and symptoms of Fibular hypoplasia and complex brachydactyly? The Human Phenotype Ontology provides the following list of signs and symptoms for Fibular hypoplasia and complex brachydactyly. 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 epiphysis morphology 90% Abnormality of the hip bone 90% Abnormality of the thumb 90% Abnormality of the tibia 90% Abnormality of the ulna 90% Aplasia/Hypoplasia of the radius 90% Brachydactyly syndrome 90% Fibular aplasia 90% Limitation of joint mobility 90% Micromelia 90% Narrow nasal bridge 90% Short stature 90% Single transverse palmar crease 90% Synostosis of carpal bones 90% Tarsal synostosis 90% Absent toe 50% Deformed tarsal bones 50% Deviation of finger 50% Malaligned carpal bone 50% Patellar dislocation 50% Short metacarpal 50% Short metatarsal 50% Short phalanx of finger 50% Small nail 50% Rhizomelia 33% Talipes equinovalgus 33% Aplastic/hypoplastic toenail - Autosomal recessive inheritance - Fibular hypoplasia - 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) Chronic active Epstein-Barr virus infection ? | Chronic active Epstein-Barr virus infection is a rare condition in which the body makes too many lymphocytes, a type of white blood cell. Lymphocytes are an important part of the immune system because they help fight off diseases and protect the body from infection. About 95% of adults are infected with Epstein-Barr virus (EBV). Most infections occur during childhood and do not cause any symptoms. EBV infection in adolescents or young adults can often result in infectious mononucleosis. Rarely, people infected with EBV develop a life-threatening condition called chronic active EBV virus (CAEBV). Patients with CAEBV most often have fever, liver dysfunction, an enlarged spleen (splenomegaly), swollen lymph nodes (lymphadenopathy), and low numbers of platelets (thrombocytopenia). Hematopoietic stem cell transplantation has shown promise in the treatment of CAEBV. |
symptoms | What are the symptoms of Chronic active Epstein-Barr virus infection ? | What are the signs and symptoms of Chronic active Epstein-Barr virus infection? The Human Phenotype Ontology provides the following list of signs and symptoms for Chronic active Epstein-Barr virus infection. 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 - Bronchiectasis - Fever - Pneumonia - Sinusitis - Splenomegaly - 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 Vocal cord dysfunction familial ? | What are the signs and symptoms of Vocal cord dysfunction familial? The Human Phenotype Ontology provides the following list of signs and symptoms for Vocal cord dysfunction familial. 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) Laryngomalacia 90% Respiratory insufficiency 50% Autosomal dominant inheritance - Dysphagia - Microcephaly - Stridor - Vocal cord paralysis - 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) Idiopathic juxtafoveal retinal telangiectasia ? | Idiopathic juxtafoveal retinal telangiectasia (IJT) refers to a group of eye conditions characterized by dilated or twisting blood vessels (telangiectasia) and defective capillaries (tiny blood vessels) near the fovea in the retina. The fovea has the biggest number of special retinal nerve cells, called cones, which enable sharp, daytime vision. In IJT, the telangiectasias cause fluid or crystal buildup and swelling, impairing reflection of light. This results in progressive vision loss. It may be congenital (present at birth) or can develop during the lifetime (acquired). The different types of IJT are distinguished by their features and treatment options. Laser photocoagulation maybe helpful in treating vision loss for individuals with certain types of IJT. |
symptoms | What are the symptoms of Idiopathic juxtafoveal retinal telangiectasia ? | What are the signs and symptoms of idiopathic juxtafoveal retinal telangiectasia? Signs and symptoms of idiopathic juxtafoveal retinal telangiectasia may include slow loss of vision, distorted vision, trouble reading, and scotomata (a spot in the visual field in which vision is absent or deficient). |
causes | What causes Idiopathic juxtafoveal retinal telangiectasia ? | What causes idiopathic juxtafoveal retinal telangiectasia? The exact, underlying cause of idiopathic juxtafoveal retinal telangiectasia (IJT) is not known. IJT has been reported in some siblings (including twins) and other family members of affected people. This suggests there may be a genetic component to IJT; however, no specific gene has been proven to cause the condition. Researchers have considered that changes in the ATM gene may interact with other genes or environmental factors to predispose a person to developing IJT. Some researchers have speculated that diabetes, or pre-diabetes, may be associated with some cases of IJT. However, to our knowledge, this association has not been proven. Others have suggested there may be a developmental cause, such as abnormal formation of vessels in the eye, which could cause abnormalities of the vessels in adulthood. Certain types of IJT may occur in association with other conditions, including polycythemia (abnormal increase in blood volume), hypoglycemia, ulcerative colitis, multiple myeloma and chronic lymphatic leukemia. |
treatment | What are the treatments for Idiopathic juxtafoveal retinal telangiectasia ? | How might idiopathic juxtafoveal retinal telangiectasia (IJT) be treated? Laser photocoagulation of areas of leakage may be helpful in treating vision loss in people with certain subtypes of IJT, such as Group 1A. A laser is a powerful beam of light which can be focused on the retina. Small "bursts" of the laser can be used to seal leaky blood vessels, destroy abnormal blood vessels, seal retinal tears, and destroy abnormal tissue in the back of the eye. Photocoagulation usually is not considered for people with people in Group 1B because of the closeness of the leakage to the fovea, and the good prognosis without treatment. It may benefit people in Group 2 but in most cases, the abnormal lesions are so close to the fovea that treatment is difficult. |
information | What is (are) Osteogenesis imperfecta ? | Osteogenesis imperfecta (OI) is a group of genetic disorders that mainly affect the bones. People with this condition have bones that break easily, often from little or no trauma. Severity varies among affected people. Multiple fractures are common, and in severe cases, can even occur before birth. Milder cases may involve only a few fractures over a person's lifetime. People with OI also have dental problems (dentinogenesis imperfecta) and hearing loss in adulthood. Other features may include muscle weakness, loose joints, and skeletal malformations. There are various recognized forms of OI which are distinguished by their features and genetic causes. Depending on the genetic cause, OI may be inherited in an autosomal dominant (more commonly) or autosomal recessive manner. Treatment is supportive and aims to decrease the number of fractures and disabilities. |
symptoms | What are the symptoms of Osteogenesis imperfecta ? | What are the signs and symptoms of Osteogenesis imperfecta? The Human Phenotype Ontology provides the following list of signs and symptoms for Osteogenesis imperfecta. 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 dental color 90% Abnormality of dentin 90% Abnormality of the metaphyses 90% Abnormality of the ribs 90% Abnormality of the tibia 90% Blue sclerae 90% Carious teeth 90% Convex nasal ridge 90% Decreased skull ossification 90% Gait disturbance 90% Intrauterine growth retardation 90% Macrocephaly 90% Pectus carinatum 90% Prominent occiput 90% Abnormal cortical bone morphology 50% Abnormal form of the vertebral bodies 50% Abnormality of the femur 50% Abnormality of the hip bone 50% Genu valgum 50% Glaucoma 50% Hyperhidrosis 50% Joint hypermobility 50% Narrow chest 50% Opacification of the corneal stroma 50% Reduced bone mineral density 50% Scoliosis 50% Slender long bone 50% Triangular face 50% Visual impairment 50% Abnormality of the endocardium 7.5% Hearing impairment 7.5% Kyphosis 7.5% Micromelia 7.5% Pectus excavatum 7.5% Recurrent fractures 7.5% Short stature 7.5% Subcutaneous hemorrhage 7.5% Thrombocytopenia 7.5% Umbilical hernia 7.5% Visceral angiomatosis 7.5% Wormian bones 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 Osteogenesis imperfecta ? | What causes osteogenesis imperfecta? Osteogenesis imperfecta (OI) may be caused by changes (mutations) in any of several genes. OI is most commonly due to a mutation in either the COL1A1 or COL1A2 gene, causing OI types I through IV. These genes play a role in how the body makes collagen, a material that helps to strengthen the bones. The type and severity of OI depends on the effect that the specific mutation has on normal collagen production. OI caused by mutations in these genes is inherited in an autosomal dominant manner. In about 10% of people with OI, the COL1A1 and COL1A2 genes are normal and the condition is due to mutations in other genes; many of these people have an autosomal recessive form of OI. Other genes in which mutations may be responsible for less common types of OI, some of which have been reported in only one individual or family, include: IFITM5 (type V) SERPINF1 (type VI) CRTAP (type VII) LEPRE1, also called P3H1 (type VIII) PPIB (type IX) SERPINH1 (type X) FKBP10 (type XI) SP7 (type XII) BMP1 (type XIII) TMEM38B (type XIV) WNT1 (type XV) SPARC (type XVII) |
inheritance | Is Osteogenesis imperfecta inherited ? | How is osteogenesis imperfecta inherited? Osteogenesis imperfecta (OI) is most commonly inherited in an autosomal dominant manner. This means that having only one changed (mutated) copy of the responsible gene in each cell is enough to cause features of OI. The mutated copy of the gene may be inherited from an affected parent, or it may occur for the first time in an affected person (a de novo mutation). When a person with an autosomal dominant form of OI has children, each child has a 50% (1 in 2) chance of inheriting the mutated gene. If the child inherits the mutated gene, the child's symptoms may be milder, or more severe, than those of the parent. Less commonly, OI is inherited in an autosomal recessive manner. This means that both copies of the responsible gene in each cell must have a mutation for a person to be affected. The parents of a person with an autosomal recessive condition typically are unaffected, but each carry one mutated copy of the gene. When two carriers of an autosomal recessive form of OI 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 be unaffected and not be a carrier. |
exams and tests | How to diagnose Osteogenesis imperfecta ? | Is genetic testing available for osteogenesis imperfecta? Genetic testing is available for individuals with osteogenesis imperfecta. The rate for detecting mutations in the genes that are responsible for OI varies depending on the type. Carrier testing may be available to relatives of affected individuals if the type of OI, disease-causing gene, and specific mutation in the affected individual are known. Prenatal testing for at-risk pregnancies can be performed by analysis of collagen made by fetal cells obtained by chorionic villus sampling (CVS) at about ten to 12 weeks' gestation if an abnormality of collagen has been identified in cells from the affected individual. Analysis of collagen after an amniocentesis (usually performed at 15-20 weeks gestation) is not useful, because the cells obtained do not produce type I collagen. However, prenatal testing can be performed by analyzing the genes (molecular genetic testing) if the specific mutation has been identified in the affected relative. GeneTests lists the names of laboratories that are performing genetic testing for different types of osteogenesis imperfecta. To view the contact information for the clinical laboratories conducting testing, click here and click on "Testing" next to the type of OI in which you are interested. Please note that most of the laboratories listed through GeneTests do not accept direct contact from patients and their families; therefore, if you are interested in learning more, you will need to work with a health care provider or genetics professional. Genetics professionals, such as genetic counselors, can also explain the inheritance of OI in detail including information about genetic risks to specific family members. |
symptoms | What are the symptoms of Cervical ribs, Sprengel anomaly, anal atresia, and urethral obstruction ? | What are the signs and symptoms of Cervical ribs, Sprengel anomaly, anal atresia, and urethral obstruction? The Human Phenotype Ontology provides the following list of signs and symptoms for Cervical ribs, Sprengel anomaly, anal atresia, and urethral obstruction. 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 - Autoimmune thrombocytopenia - Autosomal recessive inheritance - Cervical ribs - Hypertrophy of the urinary bladder - Omphalocele - Preaxial hand polydactyly - Prune belly - Renal dysplasia - Renal hypoplasia - Sprengel anomaly - Talipes equinovarus - Thoracolumbar scoliosis - Urethral obstruction - 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) Menetrier disease ? | Mntrier disease is a condition characterized by inflammation and ulcers of the mucosa (inner lining) of the stomach and by overgrowth of the cells that make up the mucosa. The condition is associated with the following signs: protein loss from the stomach, excessive mucus production, and hypochlorhydria (low levels of stomach acid) or achlorhydia (absent levels of stomach acid). Symptoms usually include vomiting, diarrhea, and weight loss. The disease may increase an individual's risk of developing stomach cancer. |
symptoms | What are the symptoms of Menetrier disease ? | What are the signs and symptoms of Menetrier disease? Although some patients with Mntrier disease may not experience symptoms, most patients have stomach pain, diarrhea, weight loss, peripheral edema, and sometimes bleeding. The Human Phenotype Ontology provides the following list of signs and symptoms for Menetrier 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) Abdominal pain 90% Edema of the lower limbs 90% Nausea and vomiting 90% Anorexia 50% Gastrointestinal hemorrhage 50% Hypoproteinemia 50% Iron deficiency anemia 50% Weight loss 50% Sepsis 7.5% Giant hypertrophic gastritis - 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 Menetrier disease ? | What causes Mntrier disease? The exact cause of Mntrier disease is unknown. However, it has been associated with cytomegalovirus (CMV) infection in children and Heliobacter pylori (H. pylori) infection in adults. In addition, some have suggested that overexpression of a type of growth factor called the transforming growth factor-, which is found in a specific part of the stomach, the superficial gastric epithelium, might play a role. |
treatment | What are the treatments for Menetrier disease ? | What treatment is available for Mntrier disease? No one treatment has proven effective for all patients with Mntrier disease; however, some benefit has been shown through the use of anticholinergic drugs, acid suppression, octreotide, and H. pylori eradication. Partial or complete removal of the stomach is generally recommended for those patients who continue to have protein loss or who have signs of pre-cancer or cancer. You can locate additional treatment information by searching PubMed, a searchable database of medical literature. Information on finding an article and its title, authors, and publishing details is listed here. Some articles are available as a complete document, while information on other studies is available as a summary abstract. To obtain the full article, contact a medical/university library (or your local library for interlibrary loan), or order it online using the following link. Using "menetrier disease AND treatment" as your search term should locate articles. To narrow your search, click on the Limits tab under the search box and specify your criteria for locating more relevant articles. Click here to view a search. http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed The National Library of Medicine (NLM) Web site has a page for locating libraries in your area that can provide direct access to these journals (print or online). The Web page also describes how you can get these articles through interlibrary loan and Loansome Doc (an NLM document-ordering service). You can access this page at the following link http://nnlm.gov/members/. You can also contact the NLM toll-free at 888-346-3656 to locate libraries in your area. |
symptoms | What are the symptoms of Acrorenal mandibular syndrome ? | What are the signs and symptoms of Acrorenal mandibular syndrome? The Human Phenotype Ontology provides the following list of signs and symptoms for Acrorenal mandibular 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 fibula 90% Abnormality of the tibia 90% Aplasia/Hypoplasia of the radius 90% Renal hypoplasia/aplasia 90% Split foot 90% Split hand 90% Abnormality of female internal genitalia 50% Abnormality of the clavicle 50% Abnormality of the hip bone 50% Abnormality of the palate 50% Abnormality of the ribs 50% Abnormality of the sense of smell 50% Aplasia/Hypoplasia of the lungs 50% Intrauterine growth retardation 50% Low-set, posteriorly rotated ears 50% Oligohydramnios 50% Pectus carinatum 50% Short neck 50% Abnormal form of the vertebral bodies 7.5% Abnormal lung lobation 7.5% Aplasia/Hypoplasia of the tongue 7.5% Congenital diaphragmatic hernia 7.5% Finger syndactyly 7.5% Kyphosis 7.5% Narrow face 7.5% Oral cleft 7.5% Scoliosis 7.5% Short philtrum 7.5% Sprengel anomaly 7.5% Tracheoesophageal fistula 7.5% Abnormal sacral segmentation - Abnormality of the cardiovascular system - Abnormality of the ureter - Absent nipple - Autosomal recessive inheritance - Bicornuate uterus - Butterfly vertebrae - Dolichocephaly - Elbow flexion contracture - Epicanthus - Foot polydactyly - Hand polydactyly - Hemivertebrae - High palate - Hip dislocation - Hypoplasia of the radius - Hypoplasia of the ulna - Hypoplastic scapulae - Kyphoscoliosis - Low-set ears - Missing ribs - Narrow chest - Narrow palate - Polycystic kidney dysplasia - Posteriorly rotated ears - Pulmonary hypoplasia - Renal agenesis - Rudimentary fibula - Rudimentary to absent tibiae - Thin ribs - Toe syndactyly - Uterus didelphys - 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 Trigger thumb ? | What are the signs and symptoms of Trigger thumb? The Human Phenotype Ontology provides the following list of signs and symptoms for Trigger thumb. 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 thumb - Autosomal 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. |
information | What is (are) Duane syndrome type 1 ? | Duane syndrome type 1 is the most common type of Duane syndrome, an eye movement disorder that is present at birth. People with Duane syndrome have restricted ability to move the affected eye(s) outward toward the ear (abduction) and/or inward toward the nose (adduction). The different types are distinguished by the eye movements that are most restricted. Duane syndrome type 1 is characterized by absent to very restricted abduction and normal to mildly restricted adduction. The eye opening (palpebral fissure) narrows and the eyeball retracts into the orbit with adduction. With abduction, the reverse occurs. One or both eyes may be affected. The majority of cases are sporadic (not inherited), while about 10% are familial. 70% of affected people do not have any other abnormalities at birth (isolated Duane syndrome). |
symptoms | What are the symptoms of Duane syndrome type 1 ? | What are the signs and symptoms of Duane syndrome type 1? The Human Phenotype Ontology provides the following list of signs and symptoms for Duane syndrome type 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) Ophthalmoparesis 90% Strabismus 90% Anteverted nares 50% Blepharophimosis 50% Deeply set eye 50% Abnormal form of the vertebral bodies 7.5% Abnormal localization of kidney 7.5% Abnormality of the pupil 7.5% Aplasia/Hypoplasia of the iris 7.5% Aplasia/Hypoplasia of the radius 7.5% Aplasia/Hypoplasia of the thumb 7.5% Brachydactyly syndrome 7.5% Chorioretinal coloboma 7.5% Cleft palate 7.5% Cognitive impairment 7.5% External ear malformation 7.5% Hearing impairment 7.5% Heterochromia iridis 7.5% Microcephaly 7.5% Nystagmus 7.5% Optic atrophy 7.5% Ptosis 7.5% Seizures 7.5% Short neck 7.5% Talipes 7.5% Visual impairment 7.5% Wide nasal bridge 7.5% Autosomal dominant inheritance - Congenital strabismus - Duane anomaly - Impaired convergence - Impaired ocular abduction - Impaired ocular adduction - Palpebral fissure narrowing on adduction - 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 Duane syndrome type 1 ? | How might Duane syndrome type 1 be treated? Management of Duane syndrome is mainly supportive. It may involve treatment of amblyopia ("lazy eye"); wearing glasses or contact lenses; the use of prisms to correct for abnormal head posture; or possible eye muscle surgery. The majority of people with Duane syndrome do not need surgery. However, surgery may be indicated if necessary to reduce severe misalignment of the eyes (strabismus); improve an unacceptable head position; treat a significant upshoot or downshoot; or fix displacement of the eyeball within the orbit (enophthalmos). Unfortunately, surgery does not restore function to the affected nerve and muscle, and no surgical technique has been completely successful in eliminating the abnormal eye movements. Surgery for Duane syndrome usually involves adjusting the other eye muscles to compensate and allow for better eye alignment. While it cannot fix the underlying problem, it can substantially improve signs or symptoms. Some surgical procedures or combinations of procedures may be successful in improving or eliminating head turns and strabismus. |
information | What is (are) Focal dystonia ? | Focal dystonia is a movement disorder that is localized to a specific part of the body. The dystonias are a group of movement problems characterized by involuntary, sustained muscle contractions, tremors, and other uncontrolled movements. Focal task-specific dystonia, or FTSD, interferes with the performance of particular tasks, such as writing, playing a musical instrument, or participating in a sport. Additionally, FTSD has been reported in tailors, shoemakers, hair stylists, and people who frequently type or use a computer mouse. While the abnormal movements associated with focal dystonia are usually painless, they can cause high levels of anxiety. The causes of focal dystonia are unknown, although the disorder likely results from a combination of genetic and environmental factors. It is possible that the different forms of FTSD have different underlying causes. Researchers have found that at least some cases are related to malfunction of the basal ganglia, which are structures deep within the brain that help start and control movement. Most cases of focal dystonia are sporadic, which means they occur in people with no history of the condition in their family. However, at least 10 percent of affected individuals have a family history which seems to follow an autosomal dominant pattern of inheritance. |
symptoms | What are the symptoms of Focal dystonia ? | What are the signs and symptoms of Focal dystonia? The Human Phenotype Ontology provides the following list of signs and symptoms for Focal dystonia. 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) Adult onset - Autosomal dominant inheritance - 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 Familial congenital fourth cranial nerve palsy ? | What are the signs and symptoms of Familial congenital fourth cranial nerve palsy? The Human Phenotype Ontology provides the following list of signs and symptoms for Familial congenital fourth cranial nerve palsy. 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 - Fourth cranial nerve palsy - 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 Corneal dystrophy Thiel Behnke type ? | What are the signs and symptoms of Corneal dystrophy Thiel Behnke type? The Human Phenotype Ontology provides the following list of signs and symptoms for Corneal dystrophy Thiel Behnke 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) Autosomal dominant inheritance - Corneal dystrophy - Corneal scarring - Juvenile epithelial corneal dystrophy - Photophobia - 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) Hypophosphatemic rickets ? | Hypophosphatemic rickets (previously called vitamin D-resistant rickets) is a disorder in which the bones become painfully soft and bend easily, due to low levels of phosphate in the blood. Symptoms usually begin in early childhood and can range in severity. Severe forms may cause bowing of the legs and other bone deformities; bone pain; joint pain; poor bone growth; and short stature. In some affected babies, the space between the skull bones closes too soon (craniosynostosis). This sometimes results in developmental abnormalities. Hypophosphatemic rickets is almost always inherited and may be caused by changes (mutations) in any of several genes. Most commonly it is due to the PHEX gene and inherited in an X-linked dominant manner. Less commonly it is inherited in an X-linked recessive manner (often called Dent disease); autosomal dominant manner; or autosomal recessive manner. Treatment involves taking phosphate and calcitriol in order to raise phosphate levels in the blood and promote normal bone formation. |
symptoms | What are the symptoms of Hypophosphatemic rickets ? | What are the signs and symptoms of Hypophosphatemic rickets? The symptoms of hypophosphatemic rickets usually begin in infancy or early childhood. Specific symptoms and severity can vary greatly among affected children. The condition can be so mild that there are no noticeable symptoms, or so severe that it causes bowing of the legs and other bone deformities; bone pain; joint pain; and short stature. Other symptoms may include premature closure of the skull bones in babies (craniosynostosis); limited joint movement; and dental abnormalities. If left untreated, symptoms worsen over time. The Human Phenotype Ontology provides the following list of signs and symptoms for Hypophosphatemic rickets. 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 dental enamel 90% Abnormality of the metaphyses 90% Bone pain 90% Genu varum 90% Premature loss of teeth 90% Craniofacial hyperostosis 50% Enthesitis 50% Osteoarthritis 50% Short stature 50% Hearing impairment 7.5% Recurrent fractures 7.5% Abnormality of pelvic girdle bone morphology - Arthralgia - Bowing of the legs - Elevated alkaline phosphatase - Elevated circulating parathyroid hormone (PTH) level - Femoral bowing - Fibular bowing - Flattening of the talar dome - Frontal bossing - Hypomineralization of enamel - Hypophosphatemia - Hypophosphatemic rickets - Metaphyseal irregularity - Osteomalacia - Phenotypic variability - Renal phosphate wasting - Renal tubular dysfunction - Shortening of the talar neck - Spinal canal stenosis - Spinal cord compression - Tibial bowing - Trapezoidal distal femoral condyles - 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. |
causes | What causes Hypophosphatemic rickets ? | What causes hypophosphatemic rickets? Hypophosphatemic rickets is almost always hereditary and may be caused by mutations in any of several genes. The specific gene involved determines the way it is inherited. Most commonly, it is caused by a mutation in the PHEX gene. Other genes that can be responsible for the condition include the CLCN5, DMP1, ENPP1, FGF23, and SLC34A3 genes. The genes associated with hereditary hypophosphatemic rickets are involved in keeping a proper balance of phosphate in the body. Many of these genes directly or indirectly regulate a protein that normally inhibits the kidneys' ability to reabsorb phosphate into the blood. Mutations affecting the function of these genes increase the production (or reduce the breakdown) of the protein, causing the protein to be overactive. The overactivity of the protein reduces phosphate reabsorption by the kidneys, leading to the features of the condition. Rarer, sporadic, acquired cases are sometimes associated with benign (non-cancerous) mesenchymal tumors that decrease resorption of phosphate. |
inheritance | Is Hypophosphatemic rickets inherited ? | How is hypophosphatemic rickets inherited? Hypophosphatemic rickets is most often inherited in an X-linked dominant manner. This means that the gene responsible for the condition is located on the X chromosome, and having only one mutated copy of the gene is enough to cause the condition. Because males have only one X chromosome (and one Y chromosome) and females have two X chromosomes, X-linked dominant conditions affect males and females differently. Both males and females can have an X-linked dominant condition. However, because males don't have a second, working copy of the gene (as females do), they usually have more severe disease than females. If a father has the mutated X-linked gene: all of his daughters will inherit the mutated gene (they will all receive his X chromosome) none of his sons will inherit the mutated gene (they only inherit his Y chromosome) If a mother has the mutated X-linked gene, each of her children (both male and female) has a 50% chance to inherit the mutated gene. Less commonly, hypophosphatemic rickets is inherited in an X-linked recessive, autosomal dominant, or autosomal recessive manner. |
information | What is (are) GM1 gangliosidosis type 3 ? | GM1 gangliosidosis is an inherited lysosomal storage disorder that progressively destroys nerve cells (neurons) in the brain and spinal cord. The condition may be classified into three major types based on the general age that signs and symptoms first appear: classic infantile (type 1); juvenile (type 2); and adult onset or chronic (type 3). Although the types differ in severity, their features may overlap significantly. GM1 gangliosidosis is caused by mutations in the GLB1 gene and is inherited in an autosomal recessive manner. Treatment is currently symptomatic and supportive. |