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LEOPARD syndrome is an inherited condition characterized by abnormalities of the skin, heart, inner ears, and genitalia. The acronym LEOPARD describes the characteristic features associated with this condition: (L)entigines (multiple dark spots on the skin; (E)lectrocardiographic conduction defects (abnormalities of th...
Factors related to eating, diet, and nutrition that increase the risk of gallstones include - obesity - rapid weight loss - diets high in calories and refi ned carbohydrates and low in fi ber People can decrease their risk of gallstones by maintaining a healthy weight through prope...
Giant cell arteritis is a disorder that causes inflammation of your arteries, usually in the scalp, neck, and arms. It narrows the arteries, which keeps blood from flowing well. Giant cell arteritis often occurs with another disorder called polymyalgia rheumatica. Both are more common in women than in men. They almost ...
Is genetic testing available for schwannomas? Genetic testing is not available for many individuals with schwannomas since most of these tumors occur sporadically (by chance) and are not caused by a genetic mutation. However, genetic testing is an option for people with an inherited condition that predisposes to schwan...
Nephronophthisis is found in populations worldwide. It occurs in an estimated 1 in 50,000 newborns in Canada, 1 in 100,000 in Finland, and 1 in 922,000 in the United States. Its incidence in other populations is unknown. Nephronophthisis is the most common genetic cause of ESRD in children and young adults.
Certain factors affect prognosis (chance of recovery) and treatment options. The prognosis (chance of recovery) and treatment options depend on: - The type of lymphoma. - Where the tumor is in the body when the tumor is diagnosed. - The stage of the cancer. - Whether there are certain changes in the ch...
This condition is described as autosomal dominant, which means one copy of the altered gene in each cell is sufficient to cause the disorder. The condition almost always results from new (de novo) mutations in the ACTB or ACTG1 gene and occurs in people with no history of the disorder in their family.
Treatment for fecal incontinence may include one or more of the following: - eating, diet, and nutrition - medications - bowel training - pelvic floor exercises and biofeedback - surgery - electrical stimulation
Meniere's disease is a disorder of the inner ear. It can cause severe dizziness, a roaring sound in your ears called tinnitus, hearing loss that comes and goes and the feeling of ear pressure or pain. It usually affects just one ear. It is a common cause of hearing loss. Attacks of dizziness may come on suddenly or...
Ataxia-telangiectasia is inherited in an autosomal recessive pattern, which means both copies of the ATM gene in each cell have mutations. Most often, the parents of an individual with an autosomal recessive condition each carry one copy of the mutated gene, but do not show signs and symptoms of the condition. About 1...
How might afibrinogenemia be treated? There is no known prevention or cure for afibrinogenemia. To treat bleeding episodes or to prepare for surgery to treat other conditions, patients may receive: The liquid portion of the blood (plasma) A blood product containing concentrated fibrinogen (cryoprecipitate) through a ve...
What are the signs and symptoms of Prosopagnosia, hereditary? The Human Phenotype Ontology provides the following list of signs and symptoms for Prosopagnosia, hereditary. 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...
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. In most cases, an affected person has one parent with the condition.
Paramyotonia congenita is an uncommon disorder; it is estimated to affect fewer than 1 in 100,000 people.
Legius syndrome is a condition characterized by changes in skin coloring (pigmentation). Almost all affected individuals have multiple caf-au-lait spots, which are flat patches on the skin that are darker than the surrounding area. Another pigmentation change, freckles in the armpits and groin, may occur in some affect...
These resources address the diagnosis or management of alpha-1 antitrypsin deficiency: - Alpha-1 Foundation: Testing for Alpha-1 - Cleveland Clinic Respiratory Institute - Gene Review: Gene Review: Alpha-1 Antitrypsin Deficiency - GeneFacts: Alpha-1 Antitrypsin Deficiency: Diagnosis - GeneFacts: Alpha-1 Antitrypsi...
Medullary cystic kidney disease (MCKD) is a chronic, progressive kidney disease characterized by the presence of small renal cysts that eventually lead to end stage renal failure. Symptoms typically appear at an average age of 28 years and may include polyuria (excessive production or passage of urine) and low urinary ...
These resources address the diagnosis or management of Waldenstrm macroglobulinemia: - American Cancer Society: How is Waldenstrom Macroglobulinemia Diagnosed? - American Cancer Society: How is Waldenstrom Macroglobulinemia Treated? - Genetic Testing Registry: Waldenstrom macroglobulinemia - MD Anderson Cancer Cent...
Anticonvulsants, including phenytoin and carbamazepine, usually provide significant relief from the stiffness, muscle spasms, and pain associated with Isaacs' syndrome. Plasma exchange may provide short-term relief for individuals with some forms of the acquired disorder.
What causes Tylosis with esophageal cancer? Mutations in the RHBDF2 gene have been shown to cause the development of this condition.
These resources address the diagnosis or management of permanent neonatal diabetes mellitus: - Gene Review: Gene Review: Permanent Neonatal Diabetes Mellitus - Genetic Testing Registry: Pancreatic agenesis, congenital - Genetic Testing Registry: Permanent neonatal diabetes mellitus - University of Chicago Kovler Di...
Many people have no visible signs or symptoms of diabetes. Symptoms can also be so mild that you might not notice them. More than 5 million people in the United States have type 2 diabetes and do not know it. - increased thirst - increased hunger - fatigue - increased urination, especially at nigh...
Summary : A metabolic panel is a group of tests that measures different chemicals in the blood. These tests are usually done on the fluid (plasma) part of blood. The tests provide information about your body's chemical balance and metabolism. They can give doctors information about your muscles (including the heart), b...
Carpenter syndrome is thought to be a rare condition; approximately 70 cases have been described in the scientific literature.
Medications affect older people differently than younger people because aging changes how the body and brain handle these substances. As we age, our bodies change and cannot break down and get rid of substances as easily as before. This means that even a small amount of a medicine or a drug can have a strong effect. If...
Divorce is the legal breakup of a marriage. Like every major life change, divorce is stressful. It affects finances, living arrangements, household jobs, schedules, and more. If the family includes children, they may be deeply affected.
The first symptoms usually include burning, itching, or tingling sensations on the back, chest, or around the rib cage or waist. In other cases, it can be the face or eye area that is involved. The affected area can become extremely painful. This is when most people go to a healthcare provider to find out what is causi...
These resources address the diagnosis or management of purine nucleoside phosphorylase deficiency: - Baby's First Test: Severe Combined Immunodeficiency - Genetic Testing Registry: Purine-nucleoside phosphorylase deficiency - National Marrow Donor Program These resources from MedlinePlus offer information about th...
Sjgren syndrome is a relatively common disorder; it occurs in 0.1 to 4 percent of the population. It is difficult to determine the exact prevalence because the characteristic features of this disorder, dry eyes and dry mouth, can also be caused by many other conditions. Women develop Sjgren syndrome about 10 times more...
Pyelonephritis is treated with antibiotics, which may need to be taken for several weeks. While a urine sample is sent to a lab for culture, the health care provider may begin treatment with an antibiotic that fights the most common types of bacteria. Once culture results are known and the bacteria is clearly identifie...
Giant axonal neuropathy is an inherited condition involving dysfunction of a specific type of protein in nerve cells (neurons). The protein is essential for normal nerve function because it forms neurofilaments. Neurofilaments make up a structural framework that helps to define the shape and size of the neurons. This c...
It is difficult to determine the prevalence of hyperprolinemia type I because most people with the condition do not have any symptoms. Hyperprolinemia type II is a rare condition; its prevalence is also unknown.
X-linked SCID is the most common form of severe combined immunodeficiency. Its exact incidence is unknown, but the condition probably affects at least 1 in 50,000 to 100,000 newborns.
What are the symptoms of silicosis? Symptoms of silicosis may include: Chronic cough Shortness of breath with exercise, usually in patients who have progressive massive fibrosis Weakness Other symptoms of this disease, especially in acute silicosis, may also include: Cough Fever Severe breathing difficulty Weight los...
Idiopathic inflammatory myopathy is thought to arise from a combination of genetic and environmental factors. The term "idiopathic" indicates that the specific cause of the disorder is unknown. Researchers have identified variations in several genes that may influence the risk of developing idiopathic inflammatory myo...
These resources address the diagnosis or management of COL4A1-related brain small-vessel disease: - Gene Review: Gene Review: COL4A1-Related Disorders - Genetic Testing Registry: Brain small vessel disease with hemorrhage These resources from MedlinePlus offer information about the diagnosis and management of vario...
What causes Schindler disease type 1? Schindler disease type 1 is caused by mutations in the NAGA gene. This gene provides instructions for making the enzyme alpha-N-acetylgalactosaminidase.This enzyme works in the lysosomes (compartments within cells that digest and recycle materials) to help break down complexes cal...
What causes von Willebrand disease? Von Willebrand disease is typically an inherited disease caused by mutations in the VWF gene. The VWF gene provides instructions for making a blood clotting protein called von Willebrand factor, which is important for forming blood clots and preventing further blood loss after an inj...
Summary : People in the U.S. are living longer than ever before. Many seniors live active and healthy lives. But there's no getting around one thing: as we age, our bodies and minds change. There are things you can do to stay healthy and active as you age.It is important to understand what to expect. Some changes may j...
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. Most reported cases have occurred in people with no known history of the disorder in their family and may result from new mutations in the gene.
Osteochondritis dissecans is a joint condition that occurs when a piece of cartilage and the thin layer of bone beneath it, separates from the end of the bone. If the piece of cartilage and bone remain close to where they detached, they may not cause any symptoms. However, affected people may experience pain, weakness ...
What causes serpiginous choroiditis? The cause of serpiginous choroiditis is unknown. Speculation exists regarding an association with exposure to various toxic compounds and/or infectious agents. Some researchers believe the condition is related to an organ-specific autoimmune inflammatory process.
The ideal treatment for AS coordinates therapies that address the three core symptoms of the disorder: poor communication skills, obsessive or repetitive routines, and physical clumsiness. There is no single best treatment package for all children with AS, but most professionals agree that the earlier the intervention,...
The signs and symptoms of asbestos-related lung diseases vary. They depend on which disease you have and how much it has damaged your lungs. Signs and symptoms may not appear for 10 to 40 or more years after exposure to asbestos. If you have pleural plaque, you may not have any signs or symptoms. Pleur...
These resources address the diagnosis or management of Griscelli syndrome: - Genetic Testing Registry: Griscelli syndrome type 1 - Genetic Testing Registry: Griscelli syndrome type 2 - Genetic Testing Registry: Griscelli syndrome type 3 These resources from MedlinePlus offer information about the diagnosis and man...
The possibilities for treatment depend on the specific subtype of congenital myasthenia. Most treatments attempt to improve the signaling between nerve cell and muscle. These drugs include pyridostigmine, fluoxetine, ephedrine, and 3,4-diaminopyridine. Treatments to alter the immune system are not used for this form of...
Mutations in the AR gene cause androgen insensitivity syndrome. This gene provides instructions for making a protein called an androgen receptor. Androgen receptors allow cells to respond to androgens, which are hormones (such as testosterone) that direct male sexual development. Androgens and androgen receptors also h...
What causes Lynch syndrome? Lynch syndrome is caused by mutations in at least 5 genes (MLH1, MSH2, MSH6, PMS2 or EPCAM). All of these genes are involved in the repair of mistakes made when DNA is copied (DNA replication) in preparation for cell division. Mutations in any of these genes prevent the proper repair of DNA...
How might osteochondritis dissecans be treated? The primary aim of treatment for osteochondritis dissecans is to restore normal function of the affected joint, relieve pain and prevent osteoarthritis. Treatment for the condition varies depending on many factors including the age of the affected person and the severity ...
In the United States, an average of 145 cases are reported each year.Of these, approximately 15% are foodborne, 65% are infant botulism, and 20% are wound. Adult intestinal colonization and iatrogenic botulism also occur, but rarely. Outbreaks of foodborne botulism involving two or more persons occur most years and are...
There is no cure for dermatomyositis, but the symptoms can be treated. Options include medication, physical therapy, exercise, heat therapy (including microwave and ultrasound), orthotics and assistive devices, and rest. The standard treatment for dermatomyositis is a corticosteroid drug, given either in pill form or i...
Chagas disease is caused by the parasite Trypanosoma cruzi, which is transmitted to animals and people by insect vectors that are found only in the Americas (mainly, in rural areas of Latin America where poverty is widespread). Chagas disease (T. cruzi infection) is also referred to as American trypanosomiasis. It is e...
What causes Mntrier disease? The exact cause of Mntrier disease is unknown. However, it has been associated with cytomegalovirus (CMV) infection in children and Heliobacter pylori (H. pylori) infection in adults. In addition, some have suggested that overexpression of a type of growth factor called the transforming gr...
What causes pilocytic astrocytoma? The exact underlying cause of pilocytic astrocytomas is currently unknown. Although most are thought to be sporadic (occurring by chance in an affected individual), they are known to be associated with certain genetic disorders including neurofibromatosis type I (NF1), Li-Fraumeni syn...
Ambras syndrome is a very rare type of hypertrichosis lanuginosa congenita, a congenital skin disease characterized by excessive hair growth on the entire body, with the exception of the palms, soles, and mucous membranes. Individuals with Ambras syndrome have excessive growth of vellus (soft, fine and short) hair, esp...
Atelosteogenesis type 1 is a disorder that affects the development of bones throughout the body. Affected individuals are born with inward- and upward-turning feet (clubfeet) and dislocations of the hips, knees, and elbows. Bones in the spine, rib cage, pelvis, and limbs may be underdeveloped or in some cases absent. A...
- Anemia is a condition in which the body has fewer red blood cells than normal. Red blood cells carry oxygen to tissues and organs throughout the body and enable them to use energy from food. - Anemia commonly occurs in people with chronic kidney disease (CKD)the permanent, partial loss of kidney function. Most peopl...
What causes Proud syndrome? Proud syndrome is caused by changes (mutations) in the ARX gene, which encodes a protein that regulates the activity of other genes. This protein is especially important during early embryonic development since it is thought to be involved in the formation of many different body structures s...
Osteoporosis-pseudoglioma syndrome is a rare condition characterized by severe thinning of the bones (osteoporosis) and eye abnormalities that lead to vision loss. In people with this condition, osteoporosis is usually recognized in early childhood. It is caused by a shortage of minerals, such as calcium, in bones (dec...
Choroideremia is inherited in an X-linked recessive pattern. The CHM gene is located on the X chromosome, which is one of the two sex chromosomes. In males (who have only one X chromosome), one altered copy of the gene in each cell is sufficient to cause the condition. In females (who have two X chromosomes), a mutatio...
Summary : Every year thousands of people in the U.S. die from motor vehicle crashes. Trying to prevent these crashes is one part of motor vehicle safety. Here are some things you can do to be safer on the road: - Make sure your vehicle is safe and in working order - Use car seats for children - Wear your...
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. However, some people who inherit the altered gene never develop features of SVAS. (This situation is known as reduced penetrance.) In some cases, a person inherits th...
The prevalence of mitochondrial complex III deficiency is unknown, although the condition is thought to be rare.
Rheumatoid arthritis can be difficult to diagnose in its early stages because the full range of symptoms develops over time, and only a few symptoms may be present in the early stages. As part of the diagnosis, your doctor will look for symptoms such as swelling, warmth, pain, and limitations in joint motion throughout...
These resources address the diagnosis or management of sitosterolemia: - Gene Review: Gene Review: Sitosterolemia - Genetic Testing Registry: Sitosterolemia - Massachusetts General Hospital: Lipid Metabolism These resources from MedlinePlus offer information about the diagnosis and management of various health con...
How might myelomeningocele be treated? A child with meningomyelocele usually has surgery to close the myelomenigocele shortly after birth. This prevents infections and helps save the spinal cord from more damage.[5181] Children who also have hydrocephalus may need a ventricular peritoneal shunt placed. This will help d...
These resources address the diagnosis or management of frontonasal dysplasia: - Genetic Testing Registry: Frontonasal dysplasia 1 - Genetic Testing Registry: Frontonasal dysplasia 2 - Genetic Testing Registry: Frontonasal dysplasia 3 - KidsHealth from Nemours: Cleft Lip and Palate - MedlinePlus Encyclopedia: Head ...
Hereditary elliptocytosis refers to a group of inherited blood conditions where the red blood cells are abnormally shaped. Symptoms can include fatigue, shortness of breath, gallstones, and yellowing of the skin and eyes (jaundice). Affected individuals can also have an enlarged spleen. Treatment is usually not necessa...
Pain may be a symptom, especially among people with more advanced Paget's disease. Affected bones also can become enlarged, misshapen, and more fragile and likely to break. Misshapen bones tend to be most noticeable in the legs, skull, and spine.
How might mal de debarquement syndrome be treated? Treatment options for mal de debarquement syndrome (MdDS) are limited. Most drugs that work for other forms of dizziness do not work for MdDS. On some cases, medications classified as vestibular suppressants, such as anti-depressants and anti-seizure medications, may b...
Is genetic testing available for amyotrophic lateral sclerosis? Yes. Clinical genetic testing is currently available for several genes in which mutations are known to cause ALS. Genetic testing on a research basis is also available for select susceptibility genes associated with ALS. You can find laboratories offering ...
Char syndrome is a condition that affects the development of the face, heart, and limbs. It is characterized by a combination of three major features: a distinctive facial appearance, a heart defect called patent ductus arteriosus, and hand abnormalities. Char syndrome is caused by mutations in the TFAP2B gene and is i...
Hereditary lymphedema type II is a primary lymphedema that results from abnormal transport of lymph fluid. Individuals with this condition usually develop swelling in the lower legs and feet during puberty. Some affected individuals develop a non-contagious skin infection called cellulitis, which can further damage the...
What are the signs and symptoms of Dementia familial British? The Human Phenotype Ontology provides the following list of signs and symptoms for Dementia familial British. 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...
Pubic ("crab") lice most commonly are spread directly from person to person by sexual contact. Pubic lice very rarely may be spread by clothing, bedding, or a toilet seat. The following are steps that can be taken to help prevent and control the spread of pubic ("crab") lice: - All sexual contacts of the...
Tay-Sachs disease is a rare inherited disorder that progressively destroys nerve cells (neurons) in the brain and spinal cord. The most common form of Tay-Sachs disease becomes apparent in infancy. Infants with this disorder typically appear normal until the age of 3 to 6 months, when their development slows and muscl...
Antiphospholipid antibody syndrome (APS) can affect people of any age. The disorder is more common in women than men, but it affects both sexes. APS also is more common in people who have other autoimmune or rheumatic disorders, such as lupus. ("Rheumatic" refers to disorders that affect the joints, bo...
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 hypoaldosteronism be treated? Treatment for hypoaldosteronism depends on the underlying condition. Affected individuals are often advised to follow a low-potassium diet with liberal sodium intake. People with hypoaldosteronism should typically avoid ACE inhibitors and potassium-sparing diuretics. Individuals ...
In very few families, people develop AD in their 30s, 40s, and 50s. This is known as "early onset" AD. These individuals have a mutation in one of three different inherited genes that causes the disease to begin at an earlier age. More than 90 percent of AD develops in people older than 65. This form of AD is called "l...
These resources address the diagnosis or management of Majeed syndrome: - Gene Review: Gene Review: Majeed Syndrome - Genetic Testing Registry: Majeed syndrome - MedlinePlus Encyclopedia: Osteomyelitis - MedlinePlus Encyclopedia: Psoriasis These resources from MedlinePlus offer information about the diagnosis and...
How is neurofibromatosis type 1 inherited? Neurofibromatosis type 1 (NF1) is inherited in an autosomal dominant manner. This means that a person only needs a change (mutation) in one copy of the responsible gene in each cell to have a genetic predisposition to the tumors associated with NF1. In approximately half of ca...
These resources address the diagnosis or management of mitochondrial complex III deficiency: - Gene Review: Gene Review: Mitochondrial Disorders Overview - Genetic Testing Registry: MITOCHONDRIAL COMPLEX III DEFICIENCY, NUCLEAR TYPE 6 - Genetic Testing Registry: MITOCHONDRIAL COMPLEX III DEFICIENCY, NUCLEAR TYPE 7 ...
Transmission of AHFV is not well understood. AHFV is a zoonotic virus, and its described tick hosts (the soft tick Ornithodoros savignyi and the hard tick Hyalomma dromedari) are widely distributed. People can become infected through a tick bite or when crushing infected ticks. Epidemiologic studies indicate that conta...
Hartnup disease is a metabolic disorder characterized by abnormal transport of certain amino acids in the kidney and gastrointestinal system. It is a type of aminoaciduria. The condition may be diagnosed based on the results of newborn screening tests. Most people with the condition have no symptoms (asymptomatic). For...
How is autoimmune atrophic gastritis diagnosed? A diagnosis of autoimmune atrophic gastritis is generally not suspected until characteristic signs and symptoms are present. Additional testing can then be ordered to confirm the diagnosis. This generally includes: A biopsy of the affected tissue obtained through endoscop...
Danon disease is a rare condition, but the exact prevalence is unknown.
Bullying is when a person or group repeatedly tries to harm someone who is weaker or who they think is weaker. Sometimes it involves direct attacks such as hitting, name calling, teasing or taunting. Sometimes it is indirect, such as spreading rumors or trying to make others reject someone. Often people dismiss bul...
Schwartz Jampel syndrome type 1 (SJS1) is a genetic disorder that affects bone and muscle development. Signs and symptoms may include muscle weakness and stiffness, abnormal bone development, joint contractures, short stature, small, fixed facial features, and eye abnormalities (some of which may impair vision). SJS1 ...
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 dyskeratosis congenita: - Gene Review: Gene Review: Dyskeratosis Congenita - Genetic Testing Registry: Dyskeratosis congenita - Genetic Testing Registry: Dyskeratosis congenita X-linked - Genetic Testing Registry: Dyskeratosis congenita autosomal dominant - Ge...
An increased risk of developing FXPOI is inherited in an X-linked dominant pattern. The FMR1 gene is located on the X chromosome, which is one of the two sex chromosomes. (The Y chromosome is the other sex chromosome.) The inheritance is dominant because one copy of the altered gene in each cell is sufficient to elevat...
Mutations in the COL4A1 gene cause familial porencephaly. 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 components of basement membranes, which are...
The incidence of atypical hemolytic-uremic syndrome is estimated to be 1 in 500,000 people per year in the United States. The atypical form is probably about 10 times less common than the typical form.
When dopa-responsive dystonia is caused by mutations in the GCH1 gene, it 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 ne...
Mutations in the CFTR gene cause cystic fibrosis. The CFTR gene provides instructions for making a channel that transports negatively charged particles called chloride ions into and out of cells. Chloride is a component of sodium chloride, a common salt found in sweat. Chloride also has important functions in cells; fo...
Is genetic testing available for spinocerebellar ataxia 2? Yes. Molecular genetic testing (analysis of DNA) is needed for a diagnosis of spinocerebellar ataxia 2 (SCA2). This testing detects abnormal CAG trinucleotide repeat expansions in the ATXN2 gene. Affected people (or people who will later develop symptoms of SCA...
Rothmund-Thomson syndrome is a rare disorder; its incidence is unknown. About 300 people with this condition have been reported worldwide in scientific studies.
These resources address the diagnosis or management of spondylocarpotarsal synostosis syndrome: - Gene Review: Gene Review: FLNB-Related Disorders - Genetic Testing Registry: Spondylocarpotarsal synostosis syndrome These resources from MedlinePlus offer information about the diagnosis and management of various heal...
The prognosis for individuals with hereditary neuropathies depends upon the type of neuropathy. Some hereditary neuropathies have very mild symptoms and may go undiagnosed for many years. Other types are more severe and are associated with more disabilities. Genetic counseling is important to understand further details...