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How is Noonan syndrome inherited? Noonan syndrome is inherited in an autosomal dominant manner. This means that having one changed (mutated) copy of the responsible gene in each cell is enough to cause the condition. Each child of a person with Noonan syndrome has a 50% (1 in 2) chance to inherit the condition. In some...
How is galactosialidosis inherited? Galactosialidosis is inherited in an autosomal recessive pattern, which means both copies of the gene in each cell have mutations. The parents of an individual with an autosomal recessive condition each carry one copy of the mutated gene, but they typically do not show signs and symp...
What are the signs and symptoms of Small cell carcinoma of the bladder? The Human Phenotype Ontology provides the following list of signs and symptoms for Small cell carcinoma of the bladder. If the information is available, the table below includes how often the symptom is seen in people with this condition. You can u...
What symptoms may be associated with craniopharyngioma? Craniopharyngioma causes symptoms in three different ways: by increasing the pressure on the brain (intracranial pressure) by disrupting the function of the pituitary gland by damaging the optic nerve Increased pressure on the brain causes headache, nausea, vomiti...
What are the signs and symptoms of Loose anagen hair syndrome? The Human Phenotype Ontology provides the following list of signs and symptoms for Loose anagen hair 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...
Coughing is a reflex that keeps your throat and airways clear. Although it can be annoying, coughing helps your body heal or protect itself. Coughs can be either acute or chronic. Acute coughs begin suddenly and usually last no more than 2 to 3 weeks. Acute coughs are the kind you most often get with a cold, flu, or ac...
What are the signs and symptoms of Kernicterus? The Human Phenotype Ontology provides the following list of signs and symptoms for Kernicterus. 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...
XLP1 is estimated to occur in about 1 per million males worldwide. XLP2 is less common, occurring in about 1 per 5 million males.
What are the signs and symptoms of Corneal dystrophy crystalline of Schnyder? The Human Phenotype Ontology provides the following list of signs and symptoms for Corneal dystrophy crystalline of Schnyder. If the information is available, the table below includes how often the symptom is seen in people with this conditio...
Hypotonia can be a life-long condition. In some cases, however, muscle tone improves over time.
What causes Proteus syndrome? Proteus syndrome is caused by mutations in the AKT1 gene. This genetic change is not inherited from a parent; it arises randomly in one cell during the early stages of development before birth. As cells continue to grow and divide, some cells will have the mutation and others will not. Thi...
Nonsyndromic aplasia cutis congenita can have different causes, and often the cause is unknown. Because the condition is sometimes found in multiple members of a family, it is thought to have a genetic component; however, the genetic factors are not fully understood. Researchers suggest that genes important for skin gr...
What causes Kyrle disease? The cause of Kyrle disease is currently unknown. Some cases appear to be idiopathic (no known triggers), or inherited. What has been found is that Kyrle disease appears to occur more frequently in patients with certain systemic disorders, which include diabetes mellitus; renal disease (chroni...
Thanatophoric dysplasia is considered an autosomal dominant disorder because one mutated copy of the FGFR3 gene in each cell is sufficient to cause the condition. Virtually all cases of thanatophoric dysplasia are caused by new mutations in the FGFR3 gene and occur in people with no history of the disorder in their fam...
What are the symptoms of La Crosse (LAC) encephalitis? Most people infected with LAC encephalitis do not have symptoms. Those that do become ill may initially have fever, headache, vomiting and lethargy (tiredness). Severe cases may develop encephalitis, an inflammation of the brain, which is often accompanied by seizu...
Cat scratch disease (CSD) is an illness caused by the bacterium Bartonella henselae. Almost half of all cats carry the infection at some point. The infection does not make cats sick. However, the scratch or bite of an infected cat can cause symptoms in people, including - Swollen lymph nodes, especially around t...
This condition is inherited in an autosomal dominant pattern, which means one copy of the altered gene in each cell is sufficient to cause the disorder.
What are the signs and symptoms of MYH-associated polyposis? The Human Phenotype Ontology provides the following list of signs and symptoms for MYH-associated polyposis. 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 Med...
Summary : Your kidneys make urine by filtering wastes and extra water from your blood. The waste is called urea. Your blood carries it to the kidneys. From the kidneys, urine travels down two thin tubes called ureters to the bladder. The bladder stores urine until you are ready to urinate. It swells into a round shape ...
Is Kawasaki syndrome inherited? A predisposition to Kawasaki syndrome appears to be passed through generations in families, but the inheritance pattern is unknown.
The progression of the disorder is usually 10 years or longer.
Mutations in the ARX gene cause XLAG. The ARX gene provides instructions for producing a protein that is involved in the development of several organs, including the brain, testes, and pancreas. In the developing brain, the ARX protein is involved with movement and communication in nerve cells (neurons). The ARX protei...
Espaol Deep vein thrombosis (throm-BO-sis), or DVT, is a blood clot that forms in a vein deep in the body. Blood clots occur when blood thickens and clumps together. Most deep vein blood clots occur in the lower leg or thigh. They also can occur in other parts of the body. ...
What are the signs and symptoms of Aromatase excess syndrome? The Human Phenotype Ontology provides the following list of signs and symptoms for Aromatase excess 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 M...
The National Institutes of Health (NIH), and the National Institute of Neurological Disorders and Stroke (NINDS), have funded many of the research studies exploring the genetic and neurobiological origins of WS. In the early 1990s, researchers located and identified the genetic mutation responsible for the disorder: th...
Bartter syndrome is a group of similar kidney disorders that cause an imbalance of potassium, sodium, chloride, and other molecules in the body. In some cases, the condition manifests before birth with increased amniotic fluid surrounding the affected fetus (polyhydramnios). Affected infants typically do not grow and g...
These resources address the diagnosis or management of osteopetrosis: - Gene Review: Gene Review: CLCN7-Related Osteopetrosis - Genetic Testing Registry: Ectodermal dysplasia, anhidrotic, with immunodeficiency, osteopetrosis, and lymphedema - Genetic Testing Registry: OSTEOPETROSIS, AUTOSOMAL RECESSIVE 5 - Genetic ...
The exact prevalence of GSDVI is unknown. At least 11 cases have been reported in the medical literature, although this condition is likely to be underdiagnosed because it can be difficult to detect in children with mild symptoms or adults with no symptoms. GSDVI is more common in the Old Older Mennonite population, wi...
How might schwannomatosis be treated? Treatment for schwannomatosis is based on the signs and symptoms present in each person. For example, pain is one of the most common symptoms of the condition. Treatment with medications such as gabapentin or pregabalin and the use of short-acting opioids and/or nonsteroidal anti-i...
Williams syndrome is a developmental disorder that affects many parts of the body. This condition is characterized by mild to moderate intellectual disability, unique personality characteristics, distinctive facial features, and heart and blood vessel (cardiovascular) problems. Williams syndrome is caused by missing ge...
Psoriatic juvenile idiopathic arthritis is a subtype of juvenile idiopathic arthritis that is characterized by both arthritis and psoriasis. Other signs and symptoms may include dactylitis (inflammation and swelling of an entire finger or toe); nail pitting or splitting; and eye problems. Although the underlying cause ...
Certain drugs that have been used successfully in other cancers are now being used to treat some breast cancers. A mix of drugs may increase the length of time you will live, or the length of time you will live without cancer. In addition, certain drugs like Herceptin and Tykerb taken in combination with chemotherapy, ...
The NINDS supports research on disorders of the brain and nervous system such as neurotoxicity, aimed at learning more about these disorders and finding ways to prevent and treat them. Scientists are investigating the role occupational or environmental toxicants have on progressive neurodegenerative disorders such as P...
How is central core disease diagnosed? Because the symptoms of central core disease can be quite variable, a physical examination alone is often not enough to establish a diagnosis. A combination of the following examinations and testings can diagnosis this condition: a physical examination that confirms muscle weakne...
A predisposition to develop autoimmune Addison disease is passed through generations in families, but the inheritance pattern is unknown.
Ultraviolet (UV) rays are an invisible form of radiation. They can pass through your skin and damage your skin cells. Sunburns are a sign of skin damage. Suntans aren't healthy, either. They appear after the sun's rays have already killed some cells and damaged others. UV rays can cause skin damage during any season or...
The signs and symptoms of idiopathic pulmonary fibrosis (IPF) develop over time. They may not even begin to appear until the disease has done serious damage to your lungs. Once they occur, they're likely to get worse over time. The most common signs and symptoms are: Shortness of breat...
Most cases of the photosensitive form of trichothiodystrophy result from mutations in one of three genes: ERCC2, ERCC3, or GTF2H5. The proteins produced from these genes work together as part of a group of proteins called the general transcription factor IIH (TFIIH) complex. This complex is involved in the repair of DN...
Every pregnancy has some risk of problems. The causes can be conditions you already have or conditions you develop. They also include being pregnant with more than one baby, previous problem pregnancies, or being over age 35. They can affect your health and the health of your baby. If you have a chronic condition, y...
Muscular dystrophy (MD) is a group of more than 30 inherited diseases. They all cause muscle weakness and muscle loss. Some forms of MD appear in infancy or childhood. Others may not appear until middle age or later. The different types can vary in whom they affect, which muscles they affect, and what the symptoms are....
When kidneys are diseased or damaged, they do not make enough EPO. As a result, the bone marrow makes fewer red blood cells, causing anemia. When blood has fewer red blood cells, it deprives the body of the oxygen it needs. Other common causes of anemia in people with kidney disease include blood loss ...
Angiostrongylus cantonensis Diagnosing A. cantonensis infections can be difficult, in part because there are no readily available blood tests. Important clues that could lead to the diagnosis of infection are a history of travel to where the parasite is known to be found and ingestion of raw or undercooked snails,...
What causes lichen planus pigmentosus? The exact underlying cause of lichen planus pigmentosus is currently unknown. However, studies suggest that the condition may be triggered by viral infections, UV light or the application of certain oils on the hair or skin (i.e. mustard oil, amla oil).
These resources address the diagnosis or management of Czech dysplasia: - Genetic Testing Registry: Czech dysplasia metatarsal type These resources from MedlinePlus offer information about the diagnosis and management of various health conditions: - Diagnostic Tests - Drug Therapy - Surgery and Rehabilitation - ...
Finding out your test results can affect you emotionally. Learning that you are someone in your family has or is at risk for a disease can be scary. Some people can also feel guilty, angry, anxious, or depressed when they find out their results. Covering the costs of testing can also be a challenge. Genetic testing can...
After an electrocardiogram (EKG), the nurse or technician will remove the electrodes (soft patches) from your skin. You may develop a rash or redness where the EKG patches were attached. This mild rash often goes away without treatment. You usually can go back to your normal daily routine after an EKG.
There is no standard course of treatment for cerebellar hypoplasia. Treatment depends upon the underlying disorder and the severity of symptoms. Generally, treatment is symptomatic and supportive.
Lactose intolerance in infants (congenital lactase deficiency) is caused by mutations in the LCT gene. The LCT gene provides instructions for making the lactase enzyme. Mutations that cause congenital lactase deficiency are believed to interfere with the function of lactase, causing affected infants to have a severely ...
Both focal and scatter laser treatment are performed in your doctor's office or eye clinic. Before the surgery, your doctor will dilate your pupil and apply drops to numb the eye. The area behind your eye also may be numbed to prevent discomfort. The lights in the office will be dim. As you sit facing the laser machine...
These resources address the diagnosis or management of Alport syndrome: - Gene Review: Gene Review: Alport Syndrome and Thin Basement Membrane Nephropathy - Genetic Testing Registry: Alport syndrome - Genetic Testing Registry: Alport syndrome, X-linked recessive - Genetic Testing Registry: Alport syndrome, autosoma...
Certain factors affect prognosis (chance of recovery) and treatment options.The prognosis (chance of recovery) and treatment options depend on the following: - The type of small intestine cancer. - Whether the cancer is in the inner lining of the small intestine only or has spread into or beyond the wall o...
Ullrich congenital muscular dystrophy is a condition that mainly affects skeletal muscles (the muscles used for movement). Affected individuals show severe muscle weakness soon after birth, develop stiff joints (contractures) in their knees and elbows, and may have an unusual range of movement (hypermobility) in their ...
Animal herders, livestock workers, and slaughterhouse workers in endemic areas are at risk of CCHF. Healthcare workers in endemic areas are at risk of infection through unprotected contact with infectious blood and body fluids. Individuals and international travelers with contact to livestock in endemic regions may als...
What are the signs and symptoms of Tracheoesophageal fistula? The Human Phenotype Ontology provides the following list of signs and symptoms for Tracheoesophageal fistula. 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 M...
Twin-to-twin transfusion syndrome is a rare condition that occurs when blood moves from one identical twin (the donor twin) to the other (the recipient twin) while in the womb. The donor twin may be born smaller, with paleness, anemia, and dehydration. The recipient twin may be born larger, with redness, too much blood...
Bilateral frontoparietal polymicrogyria (BFPP) is a rare neurological disorder that affects the cerebral cortex (the outer surface of the brain). BFPP specifically affects the frontal and parietal lobes on both sides of the brain (bilateral). Signs and symptoms typically include moderate to severe intellectual disabili...
Several species of Paragonimus cause most infections; the most important is P. westermani, which occurs primarily in Asia including China, the Philippines, Japan, Vietnam, South Korea, Taiwan, and Thailand. P. africanus causes infection in Africa, and P. mexicanus in Central and South America. Specialty dishes in which...
Is tracheobronchomalacia inherited? Primary tracheobronchomalacia (TBM) is often associated with certain genetic conditions. In some cases, an affected person inherits the condition from an affected parent. Other cases may result from new (de novo) gene mutations. These cases occur in people with no history of the diso...
SADDAN is considered an autosomal dominant disorder because one mutated copy of the FGFR3 gene in each cell is sufficient to cause the condition. The few described cases of SADDAN have been caused by new mutations in the FGFR3 gene and occurred in people with no history of the disorder in their family. No individuals w...
What causes geographic tongue? Is it genetic? The exact cause of geographic tongue has not been identified. However, because the condition may be present in several members of the same family, genetics may increase a person's chances of developing the condition. A study by Guimares (2007) showed that a specific variant...
Nursing home care can be very expensive. Medicare generally doesn't cover nursing home care. There are many ways people can pay for nursing home care. For example, they can use their own money, they may be able to get help from their state, or they may use long-term care insurance. Nursing home care isn't covered by ma...
Erythromelalgia is a condition characterized by episodes of pain, redness, and swelling in various parts of the body, particularly the hands and feet. These episodes are usually triggered by increased body temperature, which may be caused by exercise or entering a warm room. Ingesting alcohol or spicy foods may also tr...
These resources address the diagnosis or management of familial acute myeloid leukemia with mutated CEBPA: - Fred Hutchison Cancer Research Center - Gene Review: Gene Review: CEBPA-Associated Familial Acute Myeloid Leukemia (AML) - Genetic Testing Registry: Acute myeloid leukemia - MedlinePlus Encyclopedia: Bone Ma...
VACTERL association is a complex condition that may have different causes in different people. In some people, the condition is likely caused by the interaction of multiple genetic and environmental factors. Some possible genetic and environmental influences have been identified and are being studied. The developmenta...
How might Noonan syndrome be treated? Management generally focuses on the specific signs and symptoms present in each person. Treatments for the complications of Noonan syndrome (such as cardiovascular abnormalities) are generally standard and do not differ from treatment in the general population. Developmental disabi...
Age is the most important risk factor for prostate cancer. The disease is extremely rare in men under age 40, but the risk increases greatly with age. More than 60 percent of cases are diagnosed in men over age 65. The average age at the time of diagnosis is 65.
It is important to notify public health departments about even one person with marine toxin poisoning. Public health departments can then investigate to determine if a restaurant, oyster bed, or fishing area has a problem. This prevents other illnesses. In any food poisoning occurrence, consumers should note foods eate...
Mutations in the GDF6, GDF3, or MEOX1 gene can cause Klippel-Feil syndrome. These genes are involved in proper bone development. The protein produced from the GDF6 gene is necessary for the formation of bones and joints, including those in the spine. While the protein produced from the GDF3 gene is known to be involved...
Diabetic neuropathies are a family of nerve disorders caused by diabetes. People with diabetes can, over time, develop nerve damage throughout the body. Some people with nerve damage have no symptoms. Others may have symptoms such as pain, tingling, or numbnessloss of feelingin the hands, arms, feet, and legs. Nerve pr...
Most cases of 2q37 deletion syndrome are not inherited. They result from a chromosomal deletion that occurs as a random event during the formation of reproductive cells (eggs or sperm) or in early fetal development. Affected people typically have no history of the disorder in their family. Rarely, affected individuals...
Lipoid proteinosis (LP) of Urbach and Wiethe is a rare condition that affects the skin and the brain. The signs and symptoms of this condition and the disease severity vary from person to person. The first sign of LP is usually a hoarse cry during infancy. Affected children then develop characteristic growths on the sk...
Birt-Hogg-Dub syndrome is a rare disorder that affects the skin and lungs and increases the risk of certain types of tumors. Its signs and symptoms vary among affected individuals. Birt-Hogg-Dub syndrome is characterized by multiple noncancerous (benign) skin tumors, particularly on the face, neck, and upper chest. Th...
Fibromuscular dysplasia (FMD) is the abnormal development or growth of cells in the walls of arteries that can cause the vessels to narrow or bulge. The carotid arteries, which pass through the neck and supply blood to the brain, are commonly affected. Arteries within the brain and kidneys can also be affected. Narrowi...
What are the signs and symptoms of Annular pancreas? The Human Phenotype Ontology provides the following list of signs and symptoms for Annular pancreas. 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 ...
Congenital sucrase-isomaltase deficiency (CSID) is a genetic condition that affects a person's ability to digest certain sugars. People with this condition cannot break down the sugars sucrose (a sugar found in fruits, and also known as table sugar) and maltose (the sugar found in grains). CSID usually becomes apparent...
This condition is inherited in an autosomal recessive pattern, which means both copies of the gene in each cell have mutations. The parents of an individual with an autosomal recessive condition each carry one copy of the mutated gene, but they typically do not show signs and symptoms of the condition.
Different factors increase or decrease the risk of oral cavity and oropharyngeal cancer. Anything that increases your chance of getting a disease is called a risk factor. Anything that decreases your chance of getting a disease is called a protective factor. For information about risk factors and protective factors ...
How might palmoplantar keratoderma be treated? Treatment of both hereditary and nonhereditary palmoplantar keratodermas is difficult. Treatment usually only results in short-term improvement and often has adverse side effects. The goal of treatment is usually to soften the thickened skin and makes it less noticeable. T...
These resources address the diagnosis or management of alpha thalassemia: - Gene Review: Gene Review: Alpha-Thalassemia - Genetic Testing Registry: alpha Thalassemia - MedlinePlus Encyclopedia: Thalassemia - University of California, San Francisco Fetal Treatment Center: Stem Cell Treatments These resources from ...
Oculofaciocardiodental syndrome is a genetic syndrome that affects the eyes, heart, face, and teeth. Common signs and symptoms include abnormally small deep-set eyes, cataracts, long narrow face, a broad nasal tip that is divided by a cleft, heart defects, and teeth with very large roots. Other signs and symptoms inclu...
The prevalence of HMDPC is unknown. A small number of cases have been described in the scientific literature.
PMM2-CDG is caused by mutations in the PMM2 gene. This gene provides instructions for making an enzyme called phosphomannomutase 2 (PMM2). The PMM2 enzyme is involved in a process called glycosylation, which attaches groups of sugar molecules (oligosaccharides) to proteins. Glycosylation modifies proteins so they can p...
How is tularemia treated? The goal of treatment is to cure the infection with antibiotics. Streptomycin and tetracycline are commonly used to treat this infection. Once daily gentamycin treatment has been tried with excellent results as an alternative therapy to streptomycin. However, only a few cases have been studied...
PXE affects approximately 1 in 50,000 people worldwide. For reasons that are unclear, this disorder is diagnosed twice as frequently in females as in males.
Hereditary hyperekplexia has different inheritance patterns. This condition can be inherited in an autosomal dominant pattern, which means one copy of the altered gene in each cell is sufficient to cause the disorder. In some cases, an affected person inherits the mutation from one affected parent. Other cases may res...
Androgenetic alopecia is a frequent cause of hair loss in both men and women. This form of hair loss affects an estimated 50 million men and 30 million women in the United States. Androgenetic alopecia can start as early as a person's teens and risk increases with age; more than 50 percent of men over age 50 have some ...
The two most common forms of diabetes are type 1 and type 2. Currently, there is no way to delay or prevent type 1 diabetes. However, research has shown that making modest lifestyle changes can prevent or delay type 2 diabetes in people at risk for the disease. In the Diabetes Prevention Program (DPP), a landmark study...
Systemic capillary leak syndrome is a condition in which fluid and proteins leak out of tiny blood vessels and flow into surrounding tissues, resulting in dangerously low blood pressure. Attacks frequently last for several days and require emergency care. Most cases of capillary leak occur randomly in previously health...
What causes tubular aggregate myopathy? Currently, the underlying cause of tubular aggregate myopathy is not known. Some cases appear to be due to dominant mutations in the STIM1 gene.
Factor XIII deficiency is an extremely rare inherited blood disorder characterized by abnormal blood clotting that may result in abnormal bleeding. Signs and symptoms occur as the result of a deficiency in the blood clotting factor 13, which is responsible for stabilizing the formation of a blood clot. In affected indi...
These resources address the diagnosis or management of warfarin resistance: - American Society of Hematology: Antithrombotic Therapy - MedlinePlus Drugs & Supplements: Warfarin - PharmGKB These resources from MedlinePlus offer information about the diagnosis and management of various health conditions: - Diagnost...
How is Mnire's disease diagnosed? The hallmark of Mnire's disease is the fluctuation, waxing and waning of symptoms. Proper diagnosis of Mnire's disease entails several procedures, including a medical history interview; a physical examination; hearing and balance tests; and medical imaging with magnetic resonance imag...
These resources address the diagnosis or management of Manitoba oculotrichoanal syndrome: - Gene Review: Gene Review: Manitoba Oculotrichoanal Syndrome - Genetic Testing Registry: Marles Greenberg Persaud syndrome - MedlinePlus Encyclopedia: Omphalocele Repair These resources from MedlinePlus offer information abo...
Mutations in the TIMM8A gene cause DDON syndrome. The protein produced from this gene is found inside the energy-producing centers of cells (mitochondria). The TIMM8A protein forms a complex (a group of proteins that work together) with a very similar protein called TIMM13. This complex functions by transporting other ...
Persistent Mllerian duct syndrome is a rare disorder; however, the prevalence of the condition is unknown.
How is a subtype of Waardenburg syndrome type 2 diagnosed? Subtypes of Waardenburg syndrome type 2 are determined by the suspected genetic cause of the condition in a family. In some subtypes, the genetic cause is a known gene. In other subtypes, the general location (locus) of the genetic cause has been identified, ...
Botulism can result in death due to respiratory failure. However, in the past 50 years the proportion of patients with botulism who die has fallen from about 50% to 3-5%. A patient with severe botulism may require a breathing machine as well as intensive medical and nursing care for several months, and some patients di...
What are the signs and symptoms of Optic atrophy 2? The Human Phenotype Ontology provides the following list of signs and symptoms for Optic atrophy 2. 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...
Spastic paraplegia type 31 is one of a subgroup of hereditary spastic paraplegias known as autosomal dominant hereditary spastic paraplegia, which has an estimated prevalence of one to 12 per 100,000 individuals. Spastic paraplegia type 31 accounts for 3 to 9 percent of all autosomal dominant hereditary spastic paraple...
Molybdenum cofactor deficiency is a rare condition characterized by brain dysfunction (encephalopathy) that worsens over time. Babies with this condition appear normal at birth, but within a week they have difficulty feeding and develop seizures that do not improve with treatment (intractable seizures). Brain abnormali...