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Multiple cutaneous and mucosal venous malformations (also known as VMCM) are bluish patches (lesions) on the skin (cutaneous) and the mucous membranes, such as the lining of the mouth and nose. These lesions represent areas where the underlying veins and other blood vessels did not develop properly (venous malformation...
These resources address the diagnosis or management of malignant hyperthermia: - Gene Review: Gene Review: Malignant Hyperthermia Susceptibility - Genetic Testing Registry: Malignant hyperthermia susceptibility type 1 - Genetic Testing Registry: Malignant hyperthermia susceptibility type 2 - Genetic Testing Registr...
These resources address the diagnosis or management of systemic lupus erythematosus: - MedlinePlus Encyclopedia: Antinuclear Antibody Panel These resources from MedlinePlus offer information about the diagnosis and management of various health conditions: - Diagnostic Tests - Drug Therapy - Surgery and Rehabilita...
Key Points - Liver cancer is a disease in which malignant (cancer) cells form in the tissues of the liver. - Liver cancer is less common in the United States than in other parts of the world. - Having hepatitis or cirrhosis can increase the risk of developing liver cancer. ...
What are the symptoms of Mollaret meningitis? The symptoms of Mollaret meningitis are the same as those found in other types of meningitis. In Mollaret meningitis, however, the symptoms are recurring and are often accompanied by long-term irregularity of the nervous system. Common symptoms of meningitis may include: Hi...
Paramyotonia congenita is a disorder that affects muscles used for movement (skeletal muscles). Beginning in infancy or early childhood, people with this condition experience bouts of sustained muscle tensing (myotonia) that prevent muscles from relaxing normally. Myotonia causes muscle stiffness that typically appears...
Researchers have not found that eating, diet, and nutrition play a role in causing or preventing Zollinger-Ellison syndrome.
What are the signs and symptoms of Brugada syndrome 4? The Human Phenotype Ontology provides the following list of signs and symptoms for Brugada syndrome 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 Diction...
Is stiff person syndrome inherited? Genetic factors involved in causing stiff person syndrome have not been established. While most cases appear to occur in an isolated manner, some familial cases have been reported. The fact that stiff person syndrome can occur with other autoimmune disorders suggests that genetics m...
Diffuse idiopathic pulmonary neuroendocrine cell hyperplasia (DIPNECH) is a rare condition in which cells called neuroendocrine cells spread and cluster in the small airways of the lungs. The majority of affected individuals are middled-aged women. Symptoms include shortness of breath and coughing. It is considered to ...
The mission of the National Institute of Neurological Disorders and Stroke (NINDS) is to seek fundamental knowledge about the brain and nervous system and to use that knowledge to reduce the burden of neurological disease. The NINDS conducts and supports a wide range of studies that explore the complex mechanisms of no...
TSEs tend to progress rapidly and usually culminate in death over the course of a few months to a few years.
What causes 48,XXYY? 48,XXYY syndrome is a condition related to the X and Y chromosomes (the sex chromosomes). People normally have 46 chromosomes in each cell. Two of the 46 chromosomes, known as X and Y, are called sex chromosomes because they help determine whether a person will develop male or female sex characteri...
Doctors often don't know what causes tetralogy of Fallot and other congenital heart defects. Some conditions or factors that occur during pregnancy may raise your risk of having a child who has tetralogy of Fallot. These conditions and factors include: German measles (rubella) and some...
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.
Progressive osseous heteroplasia is a rare condition. Its exact incidence is unknown.
Cockayne syndrome is a rare condition which causes short stature, premature aging (progeria), severe photosensitivity, and moderate to severe learning delay. This syndrome also includes failure to thrive in the newborn, microcephaly, and impaired nervous system development. Other symptoms may include hearing loss, toot...
Fragile XE syndrome is a genetic disorder that impairs thinking ability and cognitive functioning. Most affected individuals have mild intellectual disability. In some people with this condition, cognitive function is described as borderline, which means that it is below average but not low enough to be classified as a...
Mutations in the COL4A1 gene cause HANAC syndrome. The COL4A1 gene provides instructions for making one component of a protein called type IV collagen. Type IV collagen molecules attach to each other to form complex protein networks. These protein networks are the main component of basement membranes, which are thin sh...
The prevalence of leukoencephalopathy with vanishing white matter is unknown. Although it is a rare disorder, it is believed to be one of the most common inherited diseases that affect the white matter.
Is genetic testing available for bilateral perisylvian polymicrogyria? Genetic testing is not available for bilateral perisylvian polymicrogyria because the underlying genetic cause is unknown. How is bilateral perisylvian polymicrogyria diagnosed? A diagnosis of bilateral perisylvian polymicrogyria (BPP) is typically ...
This condition is inherited in an X-linked pattern. A condition is considered X-linked if the mutated gene that causes the disorder is located on the X chromosome, one of the two sex chromosomes in each cell. In females, who have two copies of the X chromosome, one altered copy of the gene in each cell is sufficient to...
Your kidneys are two bean-shaped organs, each about the size of your fists. They are located near the middle of your back, just below the rib cage. Inside each kidney about a million tiny structures called nephrons filter blood. They remove waste products and extra water, which become urine. The urine flows through tub...
Moyamoya disease is a disorder of blood vessels in the brain, specifically the internal carotid arteries and the arteries that branch from them. These vessels, which provide oxygen-rich blood to the brain, narrow over time. Narrowing of these vessels reduces blood flow in the brain. In an attempt to compensate, new net...
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.
How might hidradenocarcinoma be treated? Because hidradenocarcinoma is quite rare, there are no established guidelines for treatment. Treatment is determined by the size and location of each particular cancer and the extent to which cancer cells may have spread to nearby lymph nodes or tissues. Surgery is often the f...
These resources address the diagnosis or management of fibronectin glomerulopathy: - Genetic Testing Registry: Glomerulopathy with fibronectin deposits 2 - MedlinePlus Encyclopedia: Protein Urine Test These resources from MedlinePlus offer information about the diagnosis and management of various health conditions:...
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 chest is the part of the body between your neck and your abdomen. It includes the ribs and breastbone. Inside your chest are several organs, including the heart, lungs, and esophagus. The pleura, a large thin sheet of tissue, lines the inside of the chest cavity. Chest injuries and disorders include - Hear...
- Lactose is a sugar found in milk and milk products. - Lactose intolerance means you have symptoms such as bloating, diarrhea, and gas after you have milk or milk products. - Your doctor will try to find out if you have lactose intolerance with a medical, family, and diet history; a physical exam; and medical tests....
Biotinidase deficiency is an inherited disorder in which the body is unable to recycle the vitamin biotin. The disorder may become apparent in the first few months of life, or later in childhood. The more severe form of the disorder is called 'profound biotinidase deficiency' and may cause delayed development, seizures...
Distal arthrogryposis type 1 is a disorder characterized by joint deformities (contractures) that restrict movement in the hands and feet. The term "arthrogryposis" comes from the Greek words for joint (arthro-) and crooked or hooked (gryposis). The characteristic features of this condition include permanently bent fin...
What are the signs and symptoms of Kallmann syndrome 5? The Human Phenotype Ontology provides the following list of signs and symptoms for Kallmann syndrome 5. 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 Dicti...
What are the signs and symptoms of Leiomyoma of vulva and esophagus? The Human Phenotype Ontology provides the following list of signs and symptoms for Leiomyoma of vulva and esophagus. If the information is available, the table below includes how often the symptom is seen in people with this condition. You can use the...
Mutations in the TEK gene (also called the TIE2 gene) cause VMCM. The TEK gene provides instructions for making a protein called TEK receptor tyrosine kinase. This receptor protein triggers chemical signals needed for forming blood vessels (angiogenesis) and maintaining their structure. This signaling process facilitat...
The National Institutes of Health (NIH), through the collaborative efforts of its National Institute of Neurological Disorders and Stroke (NINDS), National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS), and National Institute of Environmental Health Sciences (NIEHS), conducts and supports a wide ...
A malignant peripheral nerve sheath tumor (MPNST) is a tumor that develops from nerve tissue. The first symptom of MPNST is a lump or mass that increases in size, sometimes causing pain or a tingling sensation. MPNST is considered an aggressive tumor because there is up to a 65% chance of the tumor regrowing after su...
What causes subacute cerebellar degeneration? Subacute cerebellar degeneration may occur when the body's immune system attacks healthy tissue, either for unknown reasons or as an abnormal reaction to an underlying cancer. These cases are referred to as paraneoplastic cerebellar degeneration. Subacute cerebellar degener...
Brooke-Spiegler syndrome is a rare disorder; its prevalence is unknown.
This condition is usually 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, the inheritance pattern is unknown.
These resources address the diagnosis or management of ADA deficiency: - American Society of Gene and Cell Therapy: Gene Therapy for Genetic Disorders - Baby's First Test: Severe Combined Immunodeficiency - Gene Review: Gene Review: Adenosine Deaminase Deficiency - Genetic Testing Registry: Severe combined immunode...
Snoring is the sound you make when your breathing is blocked while you are asleep. The sound is caused by tissues at the top of your airway that strike each other and vibrate. Snoring is common, especially among older people and people who are overweight. When severe, snoring can cause frequent awakenings at night a...
PLS is not fatal. There is no cure and the progression of symptoms varies. Some people may retain the ability to walk without assistance, but others eventually require wheelchairs, canes, or other assistive devices.
What causes Best vitelliform macular dystrophy? Best vitelliform macular dystrophy (BVMD) is caused by changes (mutations) in the BEST1 gene. This gene gives the body instructions for making a protein called bestrophin. Bestrophin acts as a channel that controls the movement of chloride ions within the retina. It is th...
Kidney disease is most often caused by diabetes or high blood pressure. Each kidney contains about one million tiny filters made up of blood vessels. These filters are called glomeruli. Diabetes and high blood pressure damage these blood vessels, so the kidneys are not able to filter the blood as well as they used to. ...
What are the signs and symptoms of Fingerprint body myopathy? The Human Phenotype Ontology provides the following list of signs and symptoms for Fingerprint body myopathy. 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...
What treatments are available for ovarian small cell carcinoma? Ovarian small cell carcinoma is often treated with surgery and chemotherapy. Radiation therapy may also be used in some cases. Because this tumor is derived from the primitive germ cells (eggs) of the ovary, it is often treated with a chemotherapy regimen ...
What treatments are available for Henoch-Schonlein purpura? Unfortunately, there is no cure for Henoch-Schonlein purpura (HSP). Treatments aim to relieve the symptoms of this condition. For example, non-steroidal anti-inflammatory drugs (NSAIDs) or corticosteroids (such as prednisone) may be used to relieve pain. If...
Multiple familial trichoepithelioma is a rare condition characterized by multiple smooth, round, firm, skin-colored tumors (trichoepitheliomas) that usually occur on the face, but may also occur on the scalp, neck, and trunk. The tumors are derived from immature hair follicles. They usually first develop during childho...
Summary : As a teenager, you go through many changes. Your body is on its way to becoming its adult size. You may notice that you can't fit into your old shoes or that your jeans are now 3 inches too short. Along with these changes, you are probably becoming more independent and making more of your own choices. Some of...
Menstruation, or period, is normal vaginal bleeding that occurs as part of a woman's monthly cycle. Every month, your body prepares for pregnancy. If no pregnancy occurs, the uterus, or womb, sheds its lining. The menstrual blood is partly blood and partly tissue from inside the uterus. It passes out of the body throug...
How might rheumatic fever be treated? Treatment of rheumatic fever usually consists of antibiotics to treat the underlying group A Streptococcus bacterial infection and anti-inflammatory medications such as aspirin or corticosteroids. Because people with a history of rheumatic fever have a high risk of developing recur...
COG5-CDG is caused by mutations in the COG5 gene, which provides instructions for making one piece of a group of proteins known as the conserved oligomeric Golgi (COG) complex. This complex functions in the Golgi apparatus, which is a cellular structure in which newly produced proteins are modified. One process that oc...
TEMPI syndrome is a newly discovered, multisystem condition named for 5 characteristics that affected individuals have: Telangiectasias, Erythrocytosis with elevated erythropoietin level, Monoclonal gammopathy, Perinephric-fluid collections (fluid around the kidney), and Intrapulmonary shunting (when a region of the lu...
The inguinal canal is a passage through the lower abdominal wall. People have two inguinal canalsone on each side of the lower abdomen. In males, the spermatic cords pass through the inguinal canals and connect to the testicles in the scrotumthe sac around the testicles. The spermatic cords contain blood vessels, nerve...
To diagnose RTA, doctors check the acid-base balance in blood and urine samples. If the blood is more acidic than it should be and the urine less acidic than it should be, RTA may be the reason, but additional information is needed to rule out other causes. If RTA is the reason, additional information about the sodium,...
Although stroke is a disease of the brain, it can affect the entire body. A common disability that results from stroke is complete paralysis on one side of the body, called hemiplegia. A related disability that is not as debilitating as paralysis is one-sided weakness or hemiparesis. Stroke may cause problems with thin...
Ataxia neuropathy spectrum 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. Ataxia neuropathy spectrum now includes the conditions previously called mitochondrial recessi...
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.
Dominant dystrophic epidermolysis bullosa (DDEB) is a type of epidermolysis bullosa (EB), which is a group of rare inherited conditions in which the skin blisters extremely easily. DDEB is one of the milder forms of EB, although the severity is variable. Blisters may be present at birth, but typically appear during ear...
Summary : As parents, we want to keep our children safe from harm. Take steps to keep your children safe: - Install the right child safety seat in your car - Teach children how to cross the street safely - Make sure they wear the right gear and equipment for sports - Install and test smoke alarms - S...
There is no treatment for Todd's paralysis. Individuals must rest as comfortably as possible until the paralysis disappears.
People who experience smell disorders either have a decrease in their ability to smell or changes in the way they perceive odors. Total smell loss is relatively rare, but a decrease in the sense of smell occurs more often, especially in older adults. There are several types of smell disorders depending on how the sense...
Arts syndrome is characterized by sensorineural hearing loss and serious neurological and immune system problems in males. Females can also be affected by this condition, but they typically have much milder symptoms. Arts syndrome is caused by mutations in the PRPS1 gene which is located on the X chromosome. It is inhe...
Mutations in the ABHD5 gene cause Chanarin-Dorfman syndrome. The ABHD5 gene provides instructions for making a protein that turns on (activates) the ATGL enzyme, which breaks down triglycerides. Triglycerides are the main source of stored energy in cells. These fats must be broken down into simpler molecules called fat...
Many people with diabetes experience one or more symptoms, including extreme thirst or hunger, a frequent need to urinate and/or fatigue. Some lose weight without trying. Additional signs include sores that heal slowly, dry, itchy skin, loss of feeling or tingling in the feet and blurry eyesight. Some people with diabe...
The urinary tract is the bodys drainage system for removing wastes and extra water. The urinary tract includes two kidneys, two ureters, a bladder, and a urethra. The kidneys are a pair of bean-shaped organs, each about the size of a fist and located below the ribs, one on each side of the spine, toward the middle of t...
Progressive external ophthalmoplegia is a condition caused by defects in mitochondria, which are structures within cells that use oxygen to convert the energy from food into a form cells can use. This process is called oxidative phosphorylation. Although most DNA is packaged in chromosomes within the nucleus (nuclear D...
What are the signs and symptoms of Priapism? The Human Phenotype Ontology provides the following list of signs and symptoms for Priapism. 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 d...
Incontinentia pigmenti is a condition that can affect many body systems, particularly the skin. This condition occurs much more often in females than in males. Incontinentia pigmenti is characterized by skin abnormalities that evolve throughout childhood and young adulthood. Many affected infants have a blistering ras...
Foodborne illnesses are infections or irritations of the gastrointestinal (GI) tract caused by food or beverages that contain harmful bacteria, parasites, viruses, or chemicals. The GI tract is a series of hollow organs joined in a long, twisting tube from the mouth to the anus. Common symptoms of foodborne illnesses i...
What causes Jones syndrome? The exact, underlying genetic cause of Jones syndrome is not yet known.
The prognosis for individuals with Parry-Romberg syndrome varies. In some cases, the atrophy ends before the entire face is affected. In mild cases, the disorder usually causes no disability other than cosmetic effects.
The exact incidence of MPS VI is unknown, although it is estimated to occur in 1 in 250,000 to 600,000 newborns.
What are the symptoms of retroperitoneal fibrosis? Early symptoms of retroperitoneal fibrosis may include: Dull pain in the abdomen that increases with time Swelling of one leg Decreased circulation in the legs leading to pain and discoloration Late symptoms of retroperitoneal fibrosis may include: Decreased urine outp...
Lymphoma is a cancer of a part of the immune system called the lymph system. There are many types of lymphoma. One type is Hodgkin disease. The rest are called non-Hodgkin lymphomas. Non-Hodgkin lymphomas begin when a type of white blood cell, called a T cell or B cell, becomes abnormal. The cell divides again and a...
Mutations in the GBA gene cause Gaucher disease. The GBA gene provides instructions for making an enzyme called beta-glucocerebrosidase. This enzyme breaks down a fatty substance called glucocerebroside into a sugar (glucose) and a simpler fat molecule (ceramide). Mutations in the GBA gene greatly reduce or eliminate t...
Nemaline myopathy has an estimated incidence of 1 in 50,000 individuals.
What are the symptoms of gamma heavy chain disease? The severity of symptoms varies widely among people with gamma heavy chain disease. Symptoms include, fever, mild anemia, difficulty swallowing (dysphagia), recurrent upper respiratory infections, and enlarged liver and spleen (hepatosplenomegaly).
How might Swyer-James syndrome be treated? Individuals with Swyer-James syndrome reportedly have been treated conservatively in the past. However, although there are few reports published, it has been recognized that surgical treatment should be considered when infections cannot be controlled. There have been reports o...
Type A insulin resistance syndrome results from mutations in the INSR gene. This gene provides instructions for making a protein called an insulin receptor, which is found in many types of cells. Insulin receptors are embedded in the outer membrane surrounding the cell, where they attach (bind) to insulin circulating i...
These resources address the diagnosis or management of isolated Duane retraction syndrome: - Gene Review: Gene Review: Duane Syndrome - Genetic Testing Registry: Duane's syndrome - MedlinePlus Encyclopedia: Extraocular Muscle Function Testing These resources from MedlinePlus offer information about the diagnosis a...
Ewing sarcoma is a cancerous tumor that occurs in bones or soft tissues, such as cartilage or nerves. There are several types of Ewing sarcoma, including Ewing sarcoma of bone, extraosseous Ewing sarcoma, peripheral primitive neuroectodermal tumor (pPNET), and Askin tumor. These tumors are considered to be related beca...
How is Fryns syndrome inherited? Although the exact cause of Fryns syndrome is not currently known (and no disease-causing gene has yet been identified), it is thought to be genetic because it tends to "run in families" and has features common to other genetic disorders. It appears to be inherited in an autosomal reces...
Mutations in the PYGL gene cause GSDVI. The PYGL gene provides instructions for making an enzyme called liver glycogen phosphorylase. This enzyme is found only in liver cells, where it breaks down glycogen into a type of sugar called glucose-1-phosphate. Additional steps convert glucose-1-phosphate into glucose, a simp...
Caring for someone who has Alzheimer's disease (AD) can be stressful and overwhelming. It's important to take care of yourself. Ask for and accept help. Talk to the doctor. Find out what treatments might help control symptoms or address behavior problems. Find a support group. Others who have "been there" may be ab...
These resources address the diagnosis or management of HLRCC: - Gene Review: Gene Review: Hereditary Leiomyomatosis and Renal Cell Cancer - Genetic Testing Registry: Hereditary leiomyomatosis and renal cell cancer - MedlinePlus Encyclopedia: Renal Cell Carcinoma These resources from MedlinePlus offer information a...
The prevalence of Legius syndrome is unknown. Many individuals with this disorder are likely misdiagnosed because the signs and symptoms of Legius syndrome are similar to those of neurofibromatosis type 1.
What causes primary familial brain calcification (PFBC)? PFBC is a genetic condition. Mutations in the SLC20A2 gene are thought to cause about half of the cases of PFBC. Mutations in the PDGFRB and PDGFB genes have also been shown to cause PFBC. In some cases, the genes responsible have not yet been found.
Your blood is living tissue made up of liquid and solids. The liquid part, called plasma, is made of water, salts and protein. Over half of your blood is plasma. The solid part of your blood contains red blood cells, white blood cells and platelets. Blood disorders affect one or more parts of the blood and prevent y...
These resources address the diagnosis or management of nephronophthisis: - Genetic Testing Registry: Adolescent nephronophthisis - Genetic Testing Registry: Infantile nephronophthisis - Genetic Testing Registry: Nephronophthisis - Genetic Testing Registry: Nephronophthisis 1 - Genetic Testing Registry: Nephronopht...
What are the symptoms of Lambert-Eaton myasthenic syndrome? Signs and symptoms of Lambert-Eaton myasthenic syndrome may include: Weakness or loss of movement that varies in severity: Difficulty climbing stairs Difficulty lifting objects Need to use hands to arise from sitting or lying positions Difficulty talking Diffi...
These resources address the diagnosis or management of Li-Fraumeni syndrome: - Gene Review: Gene Review: Li-Fraumeni Syndrome - Genetic Testing Registry: Li-Fraumeni syndrome - Genetic Testing Registry: Li-Fraumeni syndrome 1 - Genetic Testing Registry: Li-Fraumeni syndrome 2 - MedlinePlus Encyclopedia: Cancer - ...
Birt-Hogg-Dube syndrome (BHDS) is a rare, complex, genetic disorder with three main clinical findings: non-cancerous (benign) skin tumors; lung cysts and/or history of pneumothorax (collapsed lung); and various types of renal tumors. Fibrofolliculomas are a type of benign skin tumor specific to BHDS. They typically occ...
These resources address the diagnosis or management of SCA1: - Gene Review: Gene Review: Spinocerebellar Ataxia Type 1 - Genetic Testing Registry: Spinocerebellar ataxia 1 These resources from MedlinePlus offer information about the diagnosis and management of various health conditions: - Diagnostic Tests - Drug ...
Eating, diet, and nutrition have not been shown to play a role in causing or preventing lupus nephritis. People with kidney disease that progresses may need to talk with a health care provider about changes they may need to make to their diet. People with lupus nephritis and high blood pressure may benefit from reducin...
Essential tremor is a common disorder, affecting up to 10 million people in the United States. Estimates of its prevalence vary widely because several other disorders, as well as other factors such as certain medications, can result in similar tremors. In addition, mild cases are often not brought to medical attention,...
These resources address the diagnosis or management of benign essential blepharospasm: - Benign Essential Blepharospasm Research Foundation: Botulinum Toxin for Treatment of Blepharospasm - Dystonia Medical Research Foundation: Treatments for dystonia - Genetic Testing Registry: Blepharospasm - MedlinePlus Encyclop...
What are the signs and symptoms of Hyperprolinemia type 2? The Human Phenotype Ontology provides the following list of signs and symptoms for Hyperprolinemia type 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...
These resources address the diagnosis or management of LAMM syndrome: - Gene Review: Gene Review: Congenital Deafness with Labyrinthine Aplasia, Microtia, and Microdontia - Genetic Testing Registry: Deafness with labyrinthine aplasia microtia and microdontia (LAMM) These resources from MedlinePlus offer information...