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How is glucose-6-phosphate dehydrogenase (G6PD) deficiency inherited? G6PD deficiency is inherited in an X-linked recessive manner. The gene associated with this condition is located on the X chromosome, which is one of the two sex chromosomes. In males (who have only one X chromosome), one changed (mutated) copy of th...
What are the signs and symptoms of Idiopathic neutropenia? The Human Phenotype Ontology provides the following list of signs and symptoms for Idiopathic neutropenia. 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...
Pseudoachondroplasia is an inherited disorder of bone growth which is characterized by short stature. Other features include short arms and legs, a waddling walk, early-onset joint pain (osteoarthritis), and a limited range of motion at the elbows and hips. Intelligence, facial features and head size are normal. Pseudo...
Insulin is a hormone made in the pancreas, an organ located behind the stomach. The pancreas contains clusters of cells called islets. Beta cells within the islets make insulin and release it into the blood. Insulin plays a major role in metabolismthe way the body uses digested food for energy. The dig...
The colon and rectum are part of the large intestine. Colorectal cancer occurs when tumors form in the lining of the large intestine. It is common in both men and women. The risk of developing colorectal cancer rises after age 50. You're also more likely to get it if you have colorectal polyps, a family history of colo...
If you think you or your child may have toxocariasis, you should see your health care provider to discuss the possibility of infection and, if necessary, to be examined. Toxocariasis can be difficult to diagnose because the symptoms of toxocariasis are similar to the symptoms of other infections. A blood test is availa...
A healthy diet is important in all stages of cirrhosis because malnutrition is common in people with this disease. Malnutrition is a condition that occurs when the body does not get enough nutrients. Cirrhosis may lead to malnutrition because it can cause - people to eat less because of symptoms such a...
What causes medium-chain acyl-coenzyme A dehydrogenase (MCAD) deficiency? Mutations in the ACADM gene cause medium-chain acyl-coenzyme A dehydrogenase deficiency. Mutations in the ACADM gene lead to inadequate levels of an enzyme called medium-chain acyl-coenzyme A dehydrogenase. Without sufficient amounts of this enzy...
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.
The incidence of dominant multiple epiphyseal dysplasia is estimated to be at least 1 in 10,000 newborns. The incidence of recessive multiple epiphyseal dysplasia is unknown. Both forms of this disorder may actually be more common because some people with mild symptoms are never diagnosed.
To prevent kidney stones, you need to know what caused your kidney stone. Your doctor may ask you to try to catch the kidney stone as it passes in your urine. The kidney stone can then be sent to a lab to find out what type of stone it is. If you have treatment in the hospital and the doctor removes the stone, it will ...
The doctor will examine the anus and rectum to determine whether a person has hemorrhoids. Hemorrhoid symptoms are similar to the symptoms of other anorectal problems, such as fissures, abscesses, warts, and polyps. The doctor will perform a physical exam to look for visible hemorrhoids. A digital rect...
Boomerang dysplasia is a rare disorder; its exact prevalence is unknown. Approximately 10 affected individuals have been identified.
How is Stargardt disease inherited? Stargardt disease is most commonly inherited in an autosomal recessive manner. This means that to be affected, a person must have a mutation in both copies of the responsible gene in each cell. Affected people inherit one mutated copy of the gene from each parent, who is referred to ...
The National Institute of Neurological Disorders and Stroke (NINDS) conducts CMT research in its laboratories at the National Institutes of Health (NIH) and also supports CMT research through grants to major medical institutions across the country. Ongoing research includes efforts to identify more of the mutant genes ...
What treatment is available for geographic tongue? Because geographic tongue is a benign (harmless) condition and does not typically cause symptoms, treatment is usually unnecessary. Even those patients who experience sensitivity to hot or spicy foods, generally do not require treatment. With severe symptoms, topical c...
The onset of CCHF is sudden, with initial signs and symptoms including headache, high fever, back pain, joint pain, stomach pain, and vomiting. Red eyes, a flushed face, a red throat, and petechiae (red spots) on the palate are common. Symptoms may also include jaundice, and in severe cases, changes in mood and sensory...
In most people with Ollier disease, the disorder is caused by mutations in the IDH1 or IDH2 gene. These genes provide instructions for making enzymes called isocitrate dehydrogenase 1 and isocitrate dehydrogenase 2, respectively. These enzymes convert a compound called isocitrate to another compound called 2-ketoglutar...
What are the signs and symptoms of Rheumatoid nodulosis? The Human Phenotype Ontology provides the following list of signs and symptoms for Rheumatoid nodulosis. 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 Dic...
The most common cause of peripheral arterydisease (P.A.D.) is atherosclerosis. Atherosclerosis is a disease in which plaque builds up in your arteries. The exact cause of atherosclerosis isn't known. The disease may start if certain factors damage the inner layers of the arteries. These factors include...
Certain factors affect prognosis (chance of recovery) and treatment options. The prognosis (chance of recovery) and treatment options depend on: - The age of the patient. - The subtype of AML. - Whether the patient received chemotherapy in the past to treat a different cancer. - Whether there is a hist...
Vohwinkel syndrome is an inherited condition that affects the skin. People with the "classic form" generally have honeycomb-patterned calluses on the palms of the hands and the soles of the feet (palmoplantar keratoses); constricting bands of tissue on the fingers and toes which can cause amputation; starfish-shaped, t...
There's no way around it. Smoking is bad for your health. Smoking harms nearly every organ of the body. Cigarette smoking causes 87 percent of lung cancer deaths. It is also responsible for many other cancers and health problems. These include lung disease, heart and blood vessel disease, stroke and cataracts. Women wh...
What are the signs and symptoms of Globozoospermia? The Human Phenotype Ontology provides the following list of signs and symptoms for Globozoospermia. 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...
No medical treatments exist that can cure inherited peripheral neuropathy. However, there are therapies for many other forms. In general, adopting healthy habits -- such as maintaining optimal weight, avoiding exposure to toxins, following a physician-supervised exercise program, eating a balanced diet, correcting vita...
There is no cure for striatonigral degeneration, and treatments for the disorder have variable success. Treatments used for Parkinson's disease are recommended. However, unlike Parkinson's disease, striatonigral degeneration is not responsive to levodopa. Dopamine and anticholinergics provide some benefit. Generally, t...
Tests that examine the rectum and anus are used to detect (find) and diagnose anal cancer. The following tests and procedures may be used: - Physical exam and history : An exam of the body to check general signs of health, including checking for signs of disease, such as lumps or anything else that seems unus...
Most cases of C3 glomerulopathy are sporadic, which means they occur in people with no history of the disorder in their family. Only a few reported families have had more than one family member with C3 glomerulopathy. However, many affected people have had close relatives with autoimmune diseases, which occur when the ...
Scientists have wondered whether obesity, lack of exercise, smoking, and radiation exposure, might increase risk. But at this time, there is no conclusive evidence that any of these factors contribute to an increased risk.
What are the signs and symptoms of Glycosylphosphatidylinositol deficiency? The Human Phenotype Ontology provides the following list of signs and symptoms for Glycosylphosphatidylinositol deficiency. If the information is available, the table below includes how often the symptom is seen in people with this condition. Y...
People with an acute porphyria should eat a diet with an average-to-high level of carbohydrates. The recommended dietary allowance for carbohydrates is 130 g per day for adults and children 1 year of age or older; pregnant and breastfeeding women need higher intakes.2 People should avoid limiting intake of carbohydrate...
Mutations in the ALDH5A1 gene cause succinic semialdehyde dehydrogenase deficiency. The ALDH5A1 gene provides instructions for producing the succinic semialdehyde dehydrogenase enzyme. This enzyme is involved in the breakdown of a chemical that transmits signals in the brain (neurotransmitter) called gamma-amino butyri...
These resources address the diagnosis or management of dopa-responsive dystonia: - Dartmouth-Hitchcock Children's Hospital at Dartmouth - Gene Review: Gene Review: Dystonia Overview - Gene Review: Gene Review: GTP Cyclohydrolase 1-Deficient Dopa-Responsive Dystonia - Genetic Testing Registry: Dystonia 5, Dopa-respo...
Chikungunya is a virus that spread by the same kinds of mosquitoes that spread dengue and Zika virus. Rarely, it can spread from mother to newborn around the time of birth. It may also possibly spread through infected blood. There have been outbreaks of chikungunya virus in Africa, Asia, Europe, the Indian and Pacific ...
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.
How is tumor necrosis factor receptor-associated periodic syndrome (TRAPS) inherited? TRAPS is inherited in an autosomal dominant manner. This means that having a mutation in only one of the 2 copies of the responsible gene is enough to cause signs and symptoms of the condition. When a person with an autosomal dominant...
The cause of most childhood CNS germ cell tumors is not known.
Short bowel syndrome is a rare condition. Each year, short bowel syndrome affects about three out of every million people.1
The National Institute of Neurological Disorders and Stroke (NINDS) conducts research on seizures at its research center in Bethesda, Maryland, and through grants to major medical institutions across the country. NINDS-supported scientists are exploring environmental, biological, and genetic risk factors that might mak...
If you are pregnant, high blood pressure can cause problems for you and your unborn baby. You may have had high blood pressure before you got pregnant. Or you may get it once you are pregnant - a condition called gestational hypertension. Either one can cause low birth weight or premature delivery of the baby. Contr...
Having certain syndromes can increase the risk of pancreatic NETs. Anything that increases your risk of getting a disease is called a risk factor. Having a risk factor does not mean that you will get cancer; not having risk factors doesn't mean that you will not get cancer. Talk with your doctor if you think you may be...
Myostatin-related muscle hypertrophy has a pattern of inheritance known as incomplete autosomal dominance. People with a mutation in both copies of the MSTN gene in each cell (homozygotes) have significantly increased muscle mass and strength. People with a mutation in one copy of the MSTN gene in each cell (heterozygo...
- If you have diabetes, you are at least twice as likely as other people to have heart disease or a stroke. - Controlling the ABCs of diabetesA1C (blood glucose), blood pressure, and cholesterol-can cut your risk of heart disease and stroke. - Choosing foods wisely, quitting smoking, and taking medications (if needed...
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 l...
How is von Hippel-Lindau (VHL) disease inherited? Mutations in the gene that causes VHL disease (the VHL gene) are inherited in an autosomal dominant manner. This means that having a mutation in only one copy of the VHL gene in each cell is enough to increase a person's risk of developing VHL disease. In most autosomal...
There is no cure for Gerstmann's syndrome. Treatment is symptomatic and supportive. Occupational and speech therapies may help diminish the dysgraphia and apraxia. In addition, calculators and word processors may help school children cope with the symptoms of the disorder.
Scoliosis causes a sideways curve of your backbone, or spine. These curves are often S- or C-shaped. Scoliosis is most common in late childhood and the early teens, when children grow fast. Girls are more likely to have it than boys. It can run in families. Symptoms include leaning to one side and having uneven shoulde...
Acute hepatitis C is a short-term infection with the hepatitis C virus. Symptoms can last up to 6 months. The infection sometimes clears up because your body is able to fight off the infection and get rid of the virus.
The National Institute of Neurological Disorders and Stroke (NINDS) conducts research related to IRDin its laboratories at the National Institutes of Health (NIH), and also supports additional research through grants to major medical institutions across the country. Research is focused on finding better ways to prevent...
Alagille syndrome is an inherited disorder in which a person has fewer than the normal number of small bile ducts inside the liver. It is a complex disorder that can affect other parts of the body including the heart, kidneys, blood vessels, eyes, face, and skeleton. Symptoms, including jaundice, pale, loose stools, an...
Myoclonic epilepsy myopathy sensory ataxia, commonly called MEMSA, is part of a group of conditions called the POLG-related disorders. The conditions in this group feature a range of similar signs and symptoms involving muscle-, nerve-, and brain-related functions. The signs and symptoms of MEMSA typically appear durin...
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.
Since 1986, a hepatitis B vaccine has been available and should be given to newborns and children in the United States. The vaccine, however, is unavailableor has only recently become availablein many parts of the world. You are at higher risk for hepatitis B if you or your mother was born in a region of the world wher...
Chronic inflammatory demyelinating polyneuropathy (CIDP) is a neurological disorder characterized by progressive weakness and impaired sensory function in the legs and arms. The disorder, which is sometimes called chronic relapsing polyneuropathy, is caused by damage to the myelin sheath (the fatty covering that wraps ...
Summary : Colonoscopy and sigmoidoscopy are procedures that let your doctor look inside your large intestine. They use instruments called scopes. Scopes have a tiny camera attached to a long, thin tube. The procedures let your doctor see things such as inflamed tissue, abnormal growths, and ulcers. Colonoscopy chec...
The prognosis for individuals with SOD varies according to the presence and severity of symptoms.
What causes leukonychia totalis? Leukonychia totalis (also called total leukonychia) is thought to be due to abnormal keratinization (conversion into keratin) of the nail plate. Keratin is a protein that is a major component of the epidermis (outer layer of skin), hair, nails, and horny tissues. The condition is usuall...
Kawasaki disease is a sudden and time-limited (acute) illness that affects infants and young children. Affected children develop a prolonged fever lasting several days, a skin rash, and swollen lymph nodes in the neck (cervical lymphadenopathy). They also develop redness in the whites of the eyes (conjunctivitis) and r...
Hantavirus pulmonary syndrome (HPS) is a rare but deadly viral infection. It is spread by mice and rats. They shed the virus in their urine, droppings, and saliva. Tiny droplets with the virus can enter the air. People can get the disease if they breathe infected air or come into contact with rodents or their urine or ...
Hepatitis* A is a virus, or infection, that causes liver disease and inflammation of the liver. Viruses can cause sickness. For example, the flu is caused by a virus. People can pass viruses to each other. Inflammation is swelling that occurs when tissues of the body become injured or infected. Inflamm...
What are the signs and symptoms of Florid papillomatosis of the nipple? The Human Phenotype Ontology provides the following list of signs and symptoms for Florid papillomatosis of the nipple. If the information is available, the table below includes how often the symptom is seen in people with this condition. You can u...
Prescription medicines can help people with alcohol use disorder reduce their drinking, avoid going back to heavy drinking, and get sober. None of them works in every person. There are three medications approved by the U.S. Food and Drug Administration for the treatment of alcohol use disorder. - Naltrexone (Depade, Re...
In about 75 percent of cases, hereditary spherocytosis is 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 result from new mutations in the ...
Cholesteryl ester storage disease appears to be a rare disorder. About 50 individuals affected by this condition have been reported worldwide.
The NINDS funds research to find the genes involved in diseases that cause cerebellar degeneration. Discovering these genes, identifying their mutations, and understanding how the abnormal proteins they produce cause cerebellar degeneration may eventually help scientists find ways to prevent, treat, and even cure the d...
Mutations in the SCN9A gene cause congenital insensitivity to pain. The SCN9A gene provides instructions for making one part (the alpha subunit) of a sodium channel called NaV1.7. Sodium channels transport positively charged sodium atoms (sodium ions) into cells and play a key role in a cell's ability to generate and t...
Common Symptoms The most common symptoms of heart failure include shortness of breath or difficulty breathing, feeling tired, and swelling. Swelling usually occurs in the ankles, feet, legs, and sometimes in the abdomen. Swelling is caused by fluid buildup in the body. The fluid buildup can lead to weight gain as well ...
Factor X deficiency occurs in approximately 1 per million individuals worldwide.
These resources address the diagnosis or management of task-specific focal dystonia: - Dystonia Medical Research Foundation: How Is Dystonia Diagnosed? - Dystonia Medical Research Foundation: Treatments - Gene Review: Gene Review: Dystonia Overview - Genetic Testing Registry: Focal dystonia - Merck Manual Home Hea...
Although most individuals still need to take medication after undergoing DBS, many people with Parkinsons disease experience considerable reduction of their motor symptoms and are able to reduce their medications. The amount of reduction varies but can be considerably reduced in most individuals, and can lead to a sign...
What causes Coats disease? The exact cause of Coats disease is not currently known. However, it is a reported feature of several different genetic syndromes, suggesting there may be a genetic component.[4716] Researchers believe that some cases of Coats disease may be due to somatic mutations in the NDP gene, which lea...
Dihydrolipoamide dehydrogenase deficiency occurs in an estimated 1 in 35,000 to 48,000 individuals of Ashkenazi Jewish descent. This population typically has liver disease as the primary symptom. In other populations, the prevalence of dihydrolipoamide dehydrogenase deficiency is unknown, but the condition is likely ra...
There is no cure for NMO and no FDA-approved therapies, but there are therapies to treat an attack while it is happening, to reduce symptoms, and to prevent relapses.NMO relapses and attacks are often treated with corticosteroid drugs and plasma exchange (also called plasmapheresis, a process used to remove harmful ant...
Having certain genetic syndromes may increase the risk of a central nervous system tumor. Anything that increases your chance of getting a disease is called a risk factor. Having a risk factor does not mean that you will get cancer; not having risk factors doesnt mean that you will not get cancer. Talk with your doctor...
Researchers have identified changes in five regions of the X chromosome that are linked to FG syndrome in affected families. Mutations in a gene called MED12, which is located in one of these regions, appear to be the most common cause of the disorder. Researchers are investigating genes in other regions of the X chrom...
Mutations in the MLYCD gene cause malonyl-CoA decarboxylase deficiency. The MLYCD gene provides instructions for making an enzyme called malonyl-CoA decarboxylase. Within cells, this enzyme helps regulate the formation and breakdown of a group of fats called fatty acids. Many tissues, including the heart muscle, use fa...
What causes granuloma annulare? The cause of granuloma annulare is unknown, although there is much evidence that it is linked to the immune system. It has been reported to follow insect bites; sun exposure; tuberculin skin tests, ingestion of allopurinol; trauma; and viral infections, including Epstein-Barr, HIV, hepat...
Hemochromatosis is a disease in which too much iron builds up in your body. Your body needs iron but too much of it is toxic. If you have hemochromatosis, you absorb more iron than you need. Your body has no natural way to get rid of the extra iron. It stores it in body tissues, especially the liver, heart, and pancrea...
Wallenbergs syndrome is a neurological condition caused by a stroke in the vertebral or posterior inferior cerebellar artery of the brain stem. Symptoms include difficulties with swallowing, hoarseness, dizziness, nausea and vomiting, rapid involuntary movements of the eyes (nystagmus), and problems with balance and ga...
These resources address the diagnosis or management of fragile X syndrome: - Gene Review: Gene Review: FMR1-Related Disorders - GeneFacts: Fragile X Syndrome: Diagnosis - GeneFacts: Fragile X Syndrome: Management - Genetic Testing Registry: Fragile X syndrome - MedlinePlus Encyclopedia: Fragile X syndrome These ...
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 inv...
What are the signs and symptoms of Trichotillomania? The Human Phenotype Ontology provides the following list of signs and symptoms for Trichotillomania. 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 ...
McCune-Albright syndrome occurs in between 1 in 100,000 and 1 in 1,000,000 people worldwide.
Treatment of juvenile myelomonocytic leukemia (JMML) may include the following: - Combination chemotherapy. - Stem cell transplant. - 13-cis-retinoic acid therapy. - A clinical trial of a new treatment, such as targeted therapy. Check the list of NCI-supported cancer clinical trials that are ...
Spondylocarpotarsal synostosis (SCT) syndrome is an inherited syndrome characterized by disproportionate short stature, abnormalities of the vertebrae in the spine, scoliosis and lordosis, carpal and tarsal fusion (fusion of the bones in the hands and feet), clubfoot, and facial abnormalities such as round face, large ...
The prognosis for individuals with colpocephaly depends on the severity of the associated conditions and the degree of abnormal brain development. Some children benefit from special education.
These resources address the diagnosis or management of medullary cystic kidney disease type 1: - MedlinePlus Encyclopedia: Medullary Cystic Kidney Disease - Merck Manual for Health Care Professionals: Nephronophthisis and Medullary Cystic Kidney Disease Complex These resources from MedlinePlus offer information abo...
2q37 deletion syndrome appears to be a rare condition, although its exact prevalence is unknown. Approximately 100 cases have been reported worldwide.
These resources address the diagnosis or management of arterial tortuosity syndrome: - Gene Review: Gene Review: Arterial Tortuosity Syndrome - Genetic Testing Registry: Arterial tortuosity syndrome - Johns Hopkins McKusick-Nathans Institute of Genetic Medicine - National Heart, Lung, and Blood Institute: How is an...
These resources address the diagnosis or management of pachyonychia congenita: - Gene Review: Gene Review: Pachyonychia Congenita - Genetic Testing Registry: Pachyonychia congenita 4 - Genetic Testing Registry: Pachyonychia congenita syndrome - Genetic Testing Registry: Pachyonychia congenita type 2 - Genetic Test...
Coffin-Lowry syndrome is a rare genetic disorder characterized by craniofacial (head and facial) and skeletal abnormalities, delayed intellectual development, short stature, and hypotonia. Characteristic facial features may include an underdeveloped upper jaw bone (maxillary hypoplasia), a broad nose, protruding nostri...
- Peritoneal dialysis is a treatment for kidney failure that uses the lining of your abdomen, or belly, to filter your blood inside your body. - The two types of peritoneal dialysis are continuous ambulatory peritoneal dialysis and automated peritoneal dialysis. - The most common problem with peritoneal dialysis is p...
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.
These resources address the diagnosis or management of Smith-Magenis syndrome: - Gene Review: Gene Review: Smith-Magenis Syndrome - Genetic Testing Registry: Smith-Magenis syndrome - MedlinePlus Encyclopedia: Intellectual Disability These resources from MedlinePlus offer information about the diagnosis and managem...
How is osteomesopyknosis inherited? Osteomesopyknosis is inherited in an autosomal dominant manner. This means that having only one mutated copy of the responsible gene (which has not yet been identified) is enough to cause signs or symptoms of the disorder. When a person with an autosomal dominant condition has childr...
These resources address the diagnosis or management of 3-beta-hydroxysteroid dehydrogenase deficiency: - Genetic Testing Registry: 3 beta-Hydroxysteroid dehydrogenase deficiency - Great Ormond Street Hospital for Children: Cortisol Deficiency - MedlinePlus Encyclopedia: Ambiguous Genitalia - MedlinePlus Encyclopedi...
Is genetic testing available for orofaciodigital syndrome 1 (OFD1)? Genetic testing for orofaciodigital syndrome 1 is clinically available. OFD1 is the only gene currently known to be associated with this condition. Testing is often used to confirm or establish the diagnosis in an individual when OFD1 is suspected. A...
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.
Hodgkin disease is a type of lymphoma. Lymphoma is a cancer of a part of the immune system called the lymph system. The first sign of Hodgkin disease is often an enlarged lymph node. The disease can spread to nearby lymph nodes. Later it may spread to the lungs, liver, or bone marrow. The exact cause is unknown. Ho...
CJD is usually diagnosed based on signs and symptoms of the illness, how severe they are, and how quickly they become worse. However, doctors must study brain tissue from a biopsy or autopsy in order to make a definite diagnosis of CJD. Other tests can suggest CJD. In 1996, researchers developed a test...