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These resources address the diagnosis or management of multiple system atrophy: - Genetic Testing Registry: Shy-Drager syndrome - Vanderbilt Autonomic Dysfunction Center These resources from MedlinePlus offer information about the diagnosis and management of various health conditions: - Diagnostic Tests - Drug Th...
These resources address the diagnosis or management of central core disease: - Gene Review: Gene Review: Central Core Disease - Genetic Testing Registry: Central core disease - MedlinePlus Encyclopedia: Hypotonia - MedlinePlus Encyclopedia: Malignant Hyperthermia These resources from MedlinePlus offer information...
The prevalence of Lafora progressive myoclonus epilepsy is unknown. Although the condition occurs worldwide, it appears to be most common in Mediterranean countries (including Spain, France, and Italy), parts of Central Asia, India, Pakistan, North Africa, and the Middle East.
What causes microcephalic osteodysplastic primordial dwarfism type 1 (MOPD1)? Microcephalic osteodysplastic primordial dwarfism type 1 (MOPD1) has been shown to be caused by mutations in the RNU4ATAC gene.
How might Dyggve-Melchior-Clausen syndrome be treated? Treatment of individuals with DMC syndrome depends on the affected person's symptoms and is usually supportive. There is no cure for this condition. Treatments might include spinal fusion of the segments of the spinal column at the top of the spine or other means o...
Autosomal recessive hyper IgE syndrome (AR-HIES) is a very rare primary immunodeficiency syndrome characterized by highly elevated blood levels of immunoglobulin E (IgE), recurrent staphylococcal skin abscesses, and recurrent pneumonia. The same features are also seen in the more frequent autosomal dominant HIES syndro...
These resources address the diagnosis or management of Peters plus syndrome: - Gene Review: Gene Review: Peters Plus Syndrome - Genetic Testing Registry: Peters plus syndrome These resources from MedlinePlus offer information about the diagnosis and management of various health conditions: - Diagnostic Tests - Dr...
A urea cycle disorder is a genetic disorder that results in a deficiency of one of the six enzymes in the urea cycle. These enzymes are responsible for removing ammonia from the blood stream. The urea cycle involves a series of biochemical steps in which nitrogen, a waste product of protein metabolism, is changed to a ...
The overall prevalence of sialidosis is unknown. Sialidosis type I appears to be more common in people with Italian ancestry.
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.
The prognosis for any individual with Fahr's Syndrome is variable and hard to predict. There is no reliable correlation between age, extent of calcium deposits in the brain, and neurological deficit. Since the appearance of calcification is age-dependent, a CT scan could be negative in a gene carrier who is younger tha...
The National Institute of Neurological Disorders and Stroke (NINDS) and other institutes of the National Institutes of Health (NIH) conduct research related to ADEM in laboratories at the NIH, and also support additional research through grants to major medical institutions across the country. Much of this research foc...
These resources address the diagnosis or management of hereditary hypophosphatemic rickets: - Gene Review: Gene Review: X-Linked Hypophosphatemia - Genetic Testing Registry: Autosomal dominant hypophosphatemic rickets - Genetic Testing Registry: Autosomal recessive hypophosphatemic bone disease - Genetic Testing Re...
Central cord syndrome is the most common form of incomplete spinal cord injury characterized by impairment in the arms and hands and to a lesser extent in the legs. The brain's ability to send and receive signals to and from parts of the body below the site of injury is reduced but not entirely blocked. This syndrome i...
Erythema nodosum (EN) is a skin condition in which red bumps (nodules) form on the shins. Less commonly, the nodules form on other areas of the body such as the thighs and forearms. The lesions begin as firm, hot, red, painful lumps and progress to a purplish color. EN is a type of inflammatory disorder affecting the l...
Researchers have not found that eating, diet, and nutrition play a role in causing or preventing Mntriers disease. In some cases, a health care provider may prescribe a high-protein diet to offset the loss of protein due to Mntriers disease. Some people with severe malnutrition may require IV nutrition, which is called...
Talk to other family members. You can also obtain a death certificate from a state or county vital statistics office to confirm a late relative's cause of death. Funeral homes and online obituaries may also have this information.
How is Hanhart syndrome treated? Because Hanhart 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 condition varies because it depends on the signs and symptoms present in each person. For example, limb 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.
Potocki-Lupski syndrome (PTLS) is a genetic disorder characterized by the presence of an extra copy of a tiny portion of chromosome 17 (duplication of 17p11.2). People with this duplication often have low muscle tone, poor feeding, and failure to thrive during infancy. They may also present with delayed development of ...
Septo-optic dysplasia is a disorder of early brain development. The signs and symptoms vary from person to person; however, underdevelopment (hypoplasia) of the optic nerve, abnormal formation of structures along the midline of the brain, and pituitary hypoplasia are the characteristic findings. Recurring seizures, del...
Hookworm is a soil-transmitted helminth (STH) and is one of the most common roundworm of humans. Infection is caused by the nematode parasites Necator americanus and Ancylostoma duodenale. Hookworm infections often occur in areas where human feces are used as fertilizer or where defecation onto soil happens. Geogra...
Autosomal recessive primary microcephaly (often shortened to MCPH, which stands for "microcephaly primary hereditary") is a condition in which infants are born with a very small head and a small brain. The term "microcephaly" comes from the Greek words for "small head." Infants with MCPH have an unusually small head c...
Researchers have not found that eating, diet, and nutrition play a role in causing or preventing urinary retention.
Spinocerebellar ataxia type 3 (SCA3) is a condition characterized by progressive problems with movement. People with this condition initially experience problems with coordination and balance (ataxia). Other early signs and symptoms of SCA3 include speech difficulties, uncontrolled muscle tensing (dystonia), muscle sti...
The exact prevalence of Li-Fraumeni is unknown. One U.S. registry of Li-Fraumeni syndrome patients suggests that about 400 people from 64 families have this disorder.
The prevalence of microvillus inclusion disease is unknown. At least 200 cases have been reported in Europe, although this condition occurs worldwide.
HSAN2 is a rare disease; however, the prevalence is unknown.
A stroke happens when part of your brain is not getting enough blood and stops working. Depending on the part of the brain that is damaged, a stroke can cause - sudden weakness or numbness of your face, arm, or leg on one side of your body - sudden confusion, trouble talking, or trouble understanding ...
Your salivary glands make saliva - sometimes called spit - and empty it into your mouth through openings called ducts. Saliva makes your food moist, which helps you chew and swallow. It helps you digest your food. It also cleans your mouth and contains antibodies that can kill germs. Problems with salivary glands c...
Warm towels, hot packs, or a warm bath or shower can provide temporary pain relief. Medications such as non-steroidal anti-inflammatory drugs, or NSAIDs, help reduce pain and inflammation that result from osteoarthritis. A doctor or physical therapist can recommend if heat or cold is the best treatment. For osteoarthri...
How is isobutyryl-CoA dehydrogenase deficiency (IBD deficiency) inherited? IBD deficiency 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 ...
Mutations in the TREX1, RNASEH2A, RNASEH2B, RNASEH2C, and SAMHD1 genes have been identified in people with Aicardi-Goutieres syndrome. The TREX1, RNASEH2A, RNASEH2B, and RNASEH2C genes provide instructions for making nucleases, which are enzymes that help break up molecules of DNA and its chemical cousin RNA. Mutation...
Treatments for perineal injury vary with the severity and type of injury. Tears or incisions may require stitches. Traumatic or piercing injuries may require surgery to repair damaged pelvic floor muscles, blood vessels, and nerves. Treatment for these acute injuries may also include antibiotics to prevent infection. A...
The prognosis for the leukodystrophies varies according to the specific type of leukodystrophy.
Hailey-Hailey disease is a hereditary blistering skin disease. Signs and symptoms include a painful rash and blistering in skin folds such as the armpits, groin, neck, under the breasts, and between the buttocks. Secondary bacterial infections are not uncommon. Symptoms are often worse in summer months due to heat, swe...
The mission of the National Institute of Neurological Disorders and Stroke (NINDS) is to seek fundamental knowledge of the brain and nervous system and to use that knowledge to reduce the burden of neurological disease. The NINDS is a part of the National Institutes of Health (NIH), the leading supporter of biomedical ...
The NINDS supports research on disorders that affect the brain, such as encephalitis lethargica, with the goal of finding ways to prevent and treat them. (The disease was the subject of the book and film, "Awakenings.")
What causes 22q11.2 deletion syndrome? 22q11.2 deletion syndrome is caused by a missing piece (deletion) of part of chromosome 22 in each cell. The deletion occurs near the middle of the chromosome at a location designated q11.2. Most people with 22q11.2 deletion syndrome are missing a piece of the chromosome that cont...
No effective cure currently exists for people with transverse myelitis. Physicians often prescribe corticosteroid therapy during the first few weeks of illness to decrease inflammation. Following initial therapy, the most critical part of the treatment for this disorder consists of keeping the patients body functioning...
Common symptoms of leukemia may include - fevers - frequent infections - feeling weak or tired - headache - bleeding and bruising easily - pain in the bones or joints - swelling or discomfort in the abdomen (from an enlarged spleen) - swollen lymph nodes, especially in the neck or armpit - weight loss. fev...
What causes Turner syndrome? Turner syndrome is caused by partial or complete loss of one of the X chromosomes in cells of females. Females without Turner syndrome have 2 full X chromosome in all of their cells (and males have one X chromosome and one Y chromosome). The missing genetic material affects development befo...
These resources address the diagnosis or management of Wilson disease: - Gene Review: Gene Review: Wilson Disease - Genetic Testing Registry: Wilson's disease - MedlinePlus Encyclopedia: Wilson's disease - National Human Genome Research Institute These resources from MedlinePlus offer information about the diagno...
The prevalence of juvenile primary osteoporosis is unknown. Nearly 1 in 10 adults over age 50 have osteoporosis, but the condition is uncommon in children. Osteoporosis can occur at a young age as a feature of other conditions but rarely occurs without other signs and symptoms (primary osteoporosis).
Susceptibility to intrahepatic cholestasis of pregnancy is inherited in an autosomal dominant pattern, which means one copy of the altered gene in each cell is sufficient to increase the risk of developing the disorder. Some women with an altered gene do not develop intrahepatic cholestasis of pregnancy. Many other fac...
What causes acute febrile neutrophilic dermatosis? In many cases, the cause of acute febrile neutrophilic dermatosis is unknown (idiopathic). But sometimes, it can be a sign of an immune system response to one of the following: An upper respiratory tract infection, such as a chest infection or strep throat Blood disord...
Hyperferritinemia-cataract syndrome has been estimated to occur in 1 in 200,000 individuals.
Key Points - There is no standard staging system for central nervous system atypical teratoid/rhabdoid tumor. There is no standard staging system for central nervous system atypical teratoid/rhabdoid tumor. The extent or sprea...
The National Institute of Neurological Disorders and Stroke (NINDS) supports research related to Adult Refsum Disease through grants to major research institutions across the country. Research is focused on finding better ways to prevent, treat, and ultimately cure ARD and other peroxisomal disorders.
Colpocephaly is a congenital brain abnormality in which the occipital horns - the posterior or rear portion of the lateral ventricles (cavities) of the brain - are larger than normal because white matter in the posterior cerebrum has failed to develop or thicken.
Having a long-term, or chronic, illness can disrupt your life in many ways. You may often be tired and in pain. Your illness might affect your appearance or your physical abilities and independence. You may not be able to work, causing financial problems. For children, chronic illnesses can be frightening, because they...
Summary : Military service members and veterans face some different health issues than civilians. During combat, the main health concerns are life-threatening injuries. These include - Shrapnel and gunshot wounds - Lost limbs - Head and brain injuries There may also be a risk of health problems from e...
These resources address the diagnosis or management of Wolf-Hirschhorn syndrome: - Gene Review: Gene Review: Wolf-Hirschhorn Syndrome - Genetic Testing Registry: 4p partial monosomy syndrome - MedlinePlus Encyclopedia: Epilepsy These resources from MedlinePlus offer information about the diagnosis and management o...
Most people with neuroblastoma have sporadic neuroblastoma, meaning the condition arose from somatic mutations in the body's cells and was not inherited. About 1 to 2 percent of affected individuals have familial neuroblastoma. This form of the condition has an autosomal dominant inheritance pattern, which means one c...
Signs and symptoms of chronic eosinophilic leukemia include fever and feeling very tired. Chronic eosinophilic leukemia may not cause early signs or symptoms. It may be found during a routine blood test. Signs and symptoms may be caused by chronic eosinophilic leukemia or by other conditions. Check with your doctor if ...
Mutations in the ALDH7A1 gene cause pyridoxine-dependent epilepsy. The ALDH7A1 gene provides instructions for making an enzyme called -aminoadipic semialdehyde (-AASA) dehydrogenase, also known as antiquitin. This enzyme is involved in the breakdown of the protein building block (amino acid) lysine in the brain. When ...
Carney complex 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 approximately 80 percent of cases, an affected person inherits the mutation from one affected parent. The remaining cases result from new mutations in the gene and ...
Food allergy is an abnormal response to a food triggered by your body's immune system. In adults, the foods that most often trigger allergic reactions include fish, shellfish, peanuts, and tree nuts, such as walnuts. Problem foods for children can include eggs, milk, peanuts, tree nuts, soy, and wheat. The allerg...
Changes in the DNA near the SOX9 gene are the most common genetic cause of isolated Pierre Robin sequence. It is likely that changes in other genes, some of which have not been identified, also cause isolated Pierre Robin sequence. The SOX9 gene provides instructions for making a protein that plays a critical role in ...
Horner syndrome is a disorder that affects the eye and surrounding tissues on one side of the face and results from paralysis of certain nerves. Horner syndrome can appear at any time of life; in about 5 percent of affected individuals, the disorder is present from birth (congenital). Horner syndrome is characterized ...
What are the signs and symptoms of Testicular cancer? The Human Phenotype Ontology provides the following list of signs and symptoms for Testicular cancer. 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 Dictionar...
For unknown reasons, in industrialized Western countries SLE has become 10 times more common over the past 50 years. While estimates of its prevalence vary, SLE is believed to affect 14.6 to 68 per 100,000 people in the United States, with females developing SLE more often than males. It is most common in younger women...
The exact incidence of Russell-Silver syndrome is unknown, but the condition is estimated to affect 1 in 75,000 to 100,000 people.
How is mosaic trisomy 9 diagnosed? In some cases, mosaic trisomy 9 is diagnosed before birth. A pregnancy ultrasound may reveal signs and symptoms that are suggestive of a chromosomal or developmental disorder. Additional tests, such as chorionic villus sampling (CVS) or an amniocentesis, may be offered to further inve...
What are the signs and symptoms of postural orthostatic tachycardia syndrome? Postural orthostatic tachycardia syndrome (POTS) is primarily characterized by orthostatic intolerance (an excessively reduced volume of blood returns to the heart when moving from a lying down to a standing position). Orthostatic Intolerance...
Congenital diaphragmatic hernia affects approximately 1 in 2,500 newborns.
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.
Summary : A vegetarian diet focuses on plants for food. These include fruits, vegetables, dried beans and peas, grains, seeds and nuts. There is no single type of vegetarian diet. Instead, vegetarian eating patterns usually fall into the following groups: - The vegan diet, which excludes all meat and animal pro...
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.
Cockayne syndrome occurs in about 2 per million newborns in the United States and Europe.
Tuberous sclerosis (TSC) is a rare genetic disease that causes benign tumors to grow in the brain and on other vital organs such as the kidneys, heart, eyes, lungs, and skin. It usually affects the central nervous system. In addition to the benign tumors that frequently occur in TSC, other common symptoms include seizu...
Juvenile myoclonic epilepsy affects an estimated 1 in 1,000 people worldwide. Approximately 5 percent of people with epilepsy have juvenile myoclonic epilepsy.
How might fibrodysplasia ossificans progressiva be treated? There is currently no definitive treatment. However, a brief course of high-dose corticosteroids, such as Prednisone, started within the first 24 hours of a flare-up, may help reduce the intense inflammation and tissue swelling seen in the early stages of fib...
These resources address the diagnosis or management of familial lipoprotein lipase deficiency: - Gene Review: Gene Review: Familial Lipoprotein Lipase Deficiency - Genetic Testing Registry: Hyperlipoproteinemia, type I - MedlinePlus Encyclopedia: Chylomicronemia Syndrome - MedlinePlus Encyclopedia: Familial Lipopro...
How is Brody disease diagnosed? Brody disease is suspected in people with the characteristic symptoms of this disorder (e.g., peudomyotonia, myoglobinuria etc...). In addition, people with this disease may have normal or slightly elevated creatine kinase levels. Click here to learn more about creatine kinase testing. A...
These resources address the diagnosis or management of epidermal nevus: - Genetic Testing Registry: Epidermal nevus These resources from MedlinePlus offer information about the diagnosis and management of various health conditions: - Diagnostic Tests - Drug Therapy - Surgery and Rehabilitation - Genetic Counseli...
Iodine is an essential mineral for the thyroid. However, people with Hashimotos disease may be sensitive to harmful side effects from iodine. Taking iodine drops or eating foods containing large amounts of iodinesuch as seaweed, dulse, or kelpmay cause or worsen hypothyroidism. Read more in Iodine in diet at www.nlm.ni...
The precise incidence of this condition is unknown. It is estimated to affect 1 to 3 per million people worldwide.
These resources address the diagnosis or management of Hirschsprung disease: - Cedars-Sinai: Treating Hirschsprung's Disease (Colonic Aganglionosis) - Gene Review: Gene Review: Hirschsprung Disease Overview - Genetic Testing Registry: Hirschsprung disease 1 - Genetic Testing Registry: Hirschsprung disease 2 - Gene...
What are the signs and symptoms of Spinocerebellar ataxia autosomal recessive 3? The Human Phenotype Ontology provides the following list of signs and symptoms for Spinocerebellar ataxia autosomal recessive 3. If the information is available, the table below includes how often the symptom is seen in people with this co...
How is Cowden syndrome inherited? Cowden syndrome is inherited in an autosomal dominant manner. This means that to be affected, a person only needs a change (mutation) in one copy of the responsible gene in each cell. In some cases, an affected person inherits the mutation from an affected parent. Other cases may resul...
The cause of MRKH syndrome is unknown, although it probably results from a combination of genetic and environmental factors. Researchers have not identified any genes associated with MRKH syndrome. The reproductive abnormalities of MRKH syndrome are due to incomplete development of the Mllerian duct. This structure in...
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 at risk. Risk factors for LCH include the following: - Hav...
Most cases of trisomy 13 result from having three copies of chromosome 13 in each cell in the body instead of the usual two copies. The extra genetic material disrupts the normal course of development, causing the characteristic features of trisomy 13. Trisomy 13 can also occur when part of chromosome 13 becomes attac...
Sodium is found in salt and other foods. Most canned foods and frozen dinners contain large amounts of sodium. Too much sodium makes you thirsty. But if you drink more fluid, your heart has to work harder to pump the fluid through your body. Over time, this can cause high blood pressure and congestive heart failure. ...
What causes adenoid cystic carcinoma? The underlying cause of adenoid cystic carcinoma (ACC) is not yet known, and no strong genetic or environmental risk factors specific to ACC have been identified. Researchers believe that a combination of various genetic and environmental factors probably interact to ultimately cau...
How might valinemia be treated? Due to the rarity of valinemia, information about treatment in the medical literature is very limited. A diet low in valine introduced during early infancy is thought to improve symptoms of the condition and lower valine concentrations in the blood to normal levels.
NBIA is a progressive condition. Most individuals experience periods of rapid decline lasting weeks to months, with relatively stable periods in between. The rate of progression correlates with the age at onset, meaning that children with early symptoms tend to fare more poorly. For those with early onset, dystonia and...
GRACILE syndrome is a severe disorder that begins before birth. GRACILE stands for the condition's characteristic features: growth retardation, aminoaciduria, cholestasis, iron overload, lactic acidosis, and early death. In GRACILE syndrome, growth before birth is slow (intrauterine growth retardation). Affected newbo...
EA/TEF occurs in 1 in 3,000 to 5,000 newborns.
Obstructive sleep apnea is a common condition. About half of the people who have this condition are overweight. Men are more likely than women to have sleep apnea. Although the condition can occur at any age, the risk increases as you get older. A family history of sleep apnea also increases your risk ...
Dumping syndrome is caused by problems with the storage of food particles in the stomach and emptying of particles into the duodenum. Early dumping syndrome results from rapid movement of fluid into the intestine following a sudden addition of a large amount of food from the stomach. Late dumping syndrome results from ...
Mutations in at least four genes are known to cause spondylocostal dysostosis: Mutations in the DLL3 gene cause spondylocostal dysostosis type 1; mutations in the MESP2 gene cause spondylocostal dysostosis type 2; mutations in the LFNG gene cause spondylocostal dysostosis type 3; and mutations in the HES7 gene cause sp...
These resources address the diagnosis or management of MERRF: - Gene Review: Gene Review: MERRF - Genetic Testing Registry: Myoclonus with epilepsy with ragged red fibers - Kennedy Krieger Institute: Mitochondrial Disorders - MedlinePlus Encyclopedia: Lipoma - MedlinePlus Encyclopedia: Optic nerve atrophy - Medli...
What causes Klinefelter syndrome? Klinefelter syndrome usually occurs as a random event during the formation of reproductive cells (eggs and sperm). An error in cell division called nondisjunction results in a reproductive cell with an abnormal number of chromosomes. For example, an egg or sperm cell may gain one or mo...
About 30 individuals with this condition have been identified worldwide, mostly in Mediterranean and Arab populations. Although ethylmalonic encephalopathy appears to be very rare, researchers suggest that some cases have been misdiagnosed as other neurologic disorders.
What are the signs and symptoms of Syringoma? The Human Phenotype Ontology provides the following list of signs and symptoms for Syringoma. 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...
The prevalence of TK2-MDS is unknown. Approximately 45 cases have been described.
Birt-Hogg-Dub syndrome is rare; its exact incidence is unknown. This condition has been reported in more than 400 families.
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.