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What is (are) Medullary cystic kidney disease 1 ? | 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 ... |
What is (are) Birt-Hogg-Dube syndrome ? | 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... |
What is (are) Tremor ? | Tremors are unintentional trembling or shaking movements in one or more parts of your body. Most tremors occur in the hands. You can also have arm, head, face, vocal cord, trunk, and leg tremors. Tremors are most common in middle-aged and older people, but anyone can have them. The cause of tremors is a problem in t... |
What is (are) congenital stromal corneal dystrophy ? | Congenital stromal corneal dystrophy is an inherited eye disorder. This condition primarily affects the cornea, which is the clear outer covering of the eye. In people with this condition, the cornea appears cloudy and may have an irregular surface. These corneal changes lead to visual impairment, including blurring, g... |
What is (are) Skin Cancer ? | Key Points
- Skin cancer is a disease in which malignant (cancer) cells form in the tissues of the skin. - There are different types of cancer that start in the skin. - Skin color and being exposed to sunlight can increase the risk of nonmelanoma skin cancer and actinic keratosis. - Nonme... |
What is (are) Age-related Macular Degeneration ? | The AREDS formulation is a combination of antioxidants and zinc that is named for a study conducted by The National Eye Institute called the Age-Related Eye Disease Study, or AREDS. This study found that taking a specific high-dose formulation of antioxidants and zinc significantly reduced the risk of advanced AMD and ... |
What is (are) Sarcoidosis ? | Sarcoidosis is an inflammatory disease characterized by the development and growth of tiny lumps of cells called granulomas. If these tiny granulomas grow and clump together in an organ, they can affect how the organ works, leading to the symptoms of sarcoidosis. The granulomas can be found in almost any part of the bo... |
What is (are) sick sinus syndrome ? | Sick sinus syndrome (also known as sinus node dysfunction) is a group of related heart conditions that can affect how the heart beats. "Sick sinus" refers to the sino-atrial (SA) node, which is an area of specialized cells in the heart that functions as a natural pacemaker. The SA node generates electrical impulses tha... |
What is (are) Chondrocalcinosis 2 ? | Chondrocalcinosis 2 is a rare condition characterized by the accumulation of calcium pyrophosphate dihydrate crystals in and around the joints. A buildup of these crystals can lead to progressive (worsening over time) joint damage. Some affected people may not have any signs or symptoms of the condition. Others experie... |
What is (are) Klippel-Trenaunay syndrome ? | Klippel-Trenaunay syndrome is a condition that affects the development of blood vessels, soft tissues, and bones. The disorder has three characteristic features: a red birthmark called a port-wine stain, abnormal overgrowth of soft tissues and bones, and vein malformations. Most people with Klippel-Trenaunay syndrome ... |
What is (are) Adrenal Gland Cancer ? | Your adrenal, or suprarenal, glands are located on the top of each kidney. These glands produce hormones that you can't live without, including sex hormones and cortisol, which helps you respond to stress and has many other functions. A number of disorders can affect the adrenal glands, including tumors. Tumors can ... |
What is (are) Mitochondrial neurogastrointestinal encephalopathy syndrome ? | Mitochondrial neurogastrointestinal encephalopathy (MNGIE) syndrome is a condition that particularly affects the digestive system and nervous system. Signs and symptoms of this condition most often begin by age 20 and worsen with time. Almost all people with MNGIE have gastrointestinal dysmotility, in which the muscles... |
What is (are) Primary Hyperparathyroidism ? | The parathyroid glands are four pea-sized glands located on or near the thyroid gland in the neck. Occasionally, a person is born with one or more of the parathyroid glands in another location. For example, a gland may be embedded in the thyroid, in the thymusan immune system organ located in the chestor elsewhere arou... |
What is (are) Childhood Hodgkin Lymphoma ? | Key Points
- Childhood Hodgkin lymphoma is a disease in which malignant (cancer) cells form in the lymph system. - There are two types of childhood Hodgkin lymphoma. - Epstein-Barr virus infection increases the risk of childhood Hodgkin lymphoma. - Signs of childhood Hodgkin lymphoma inclu... |
What is (are) Absence of Tibia ? | Absence of tibia is a rare birth defect that is characterized by deficiency of the tibia (the shinbone) with other bones of the lower leg relatively intact. The condition may affect one or both legs. Some cases are isolated birth defects, while others are associated with a variety of skeletal and other malformations. I... |
Do you have information about Fire Safety | Summary : Preventing fires is an important part of fire safety. In the United States, cooking is the main cause of home fires. Cigarettes are a big risk too - they are the leading cause of fire deaths. Here are some fire prevention tips: - Don't leave the stove or oven unattended when they are on - Don't let c... |
What is (are) TK2-related mitochondrial DNA depletion syndrome, myopathic form ? | TK2-related mitochondrial DNA depletion syndrome, myopathic form (TK2-MDS) is an inherited condition that causes progressive muscle weakness (myopathy). The signs and symptoms of TK2-MDS typically begin in early childhood. Development is usually normal early in life, but as muscle weakness progresses, people with TK2-... |
What is (are) Osteonecrosis ? | Osteonecrosis is a disease caused by reduced blood flow to bones in the joints. In people with healthy bones, new bone is always replacing old bone. In osteonecrosis, the lack of blood causes the bone to break down faster than the body can make enough new bone. The bone starts to die and may break down. You can have... |
What is (are) Reticulohistiocytoma ? | Reticulohistiocytoma (RH) is a rare benign lesion of the soft tissue. It belongs to a group of disorders called non-Langerhans cell histiocytosis and is a type of reticulohistiocytosis, all of which are types of histiocytosis. Histiocytosis is a condition in which there is rapid production (proliferation) of histiocyte... |
What is (are) Noonan syndrome 2 ? | Noonan syndrome is a genetic disorder that causes abnormal development of multiple parts of the body. Features of Noonan syndrome may include a distinctive facial appearance, short stature, a broad or webbed neck, congenital heart defects, bleeding problems, skeletal malformations, and developmental delay. Noonan syndr... |
What is (are) Lymphomatoid papulosis ? | Lymphomatoid papulosis is a skin disorder that is characterized by crops of self healing skin lesions that look cancerous under the microscope but are actually benign (non-cancerous). Lesions contain unusual cells that are similar to those found in some lymphomas (cancers of the lymphatic system). |
What is (are) Liver (Hepatocellular) Cancer ? | 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 is (are) Duane syndrome type 1 ? | Duane syndrome type 1 is the most common type of Duane syndrome, an eye movement disorder that is present at birth. People with Duane syndrome have restricted ability to move the affected eye(s) outward toward the ear (abduction) and/or inward toward the nose (adduction). The different types are distinguished by the ey... |
Do you have information about Veterans and Military Health | 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... |
What is (are) GM3 synthase deficiency ? | GM3 synthase deficiency is characterized by recurrent seizures (epilepsy) and problems with brain development. Within the first few weeks after birth, affected infants become irritable and develop feeding difficulties and vomiting that prevent them from growing and gaining weight at the usual rate. Seizures begin withi... |
What is (are) progressive external ophthalmoplegia ? | Progressive external ophthalmoplegia is a condition characterized by weakness of the eye muscles. The condition typically appears in adults between ages 18 and 40. The most common signs and symptoms of progressive external ophthalmoplegia are drooping eyelids (ptosis), which can affect one or both eyelids, and weakness... |
What is (are) Friedreich's Ataxia ? | Friedreich's ataxia is an inherited disease that damages your nervous system. The damage affects your spinal cord and the nerves that control muscle movement in your arms and legs. Symptoms usually begin between the ages of 5 and 15. The main symptom is ataxia, which means trouble coordinating movements. Specific sympt... |
What is (are) Metachromatic leukodystrophy ? | Metachromatic leukodystrophy is an inherited condition characterized by the accumulation of fats called sulfatides in cells, especially cells of the nervous system. This accumulation results in progressive destruction of white matter of the brain, which consists of nerve fibers covered by myelin. Affected individuals e... |
What is (are) multiple endocrine neoplasia ? | Multiple endocrine neoplasia is a group of disorders that affect the body's network of hormone-producing glands (the endocrine system). Hormones are chemical messengers that travel through the bloodstream and regulate the function of cells and tissues throughout the body. Multiple endocrine neoplasia typically involves... |
What is (are) Goldenhar disease ? | Goldenhar disease is a condition that is present at birth and mainly affects the development of the eye, ear and spine. Affected individuals commonly have a partially formed ear (microtia) or totally absent ear (anotia), noncancerous (benign) growths of the eye (ocular dermoid cysts), and spinal abnormalities. Goldenha... |
What is (are) Atherosclerosis ? | Espaol
Atherosclerosis is a disease in which plaque builds up inside your arteries. Arteries are blood vessels that carry oxygen-rich blood to your heart and other parts of your body.
Plaque is made up of fat, cholesterol, calcium, and other substances found in the blood. Over time, pl... |
Do you have information about Asbestos | Summary : Asbestos is the name of a group of minerals with long, thin fibers. It was once used widely as insulation. It also occurs in the environment. Asbestos fibers are so small you can't see them. If you disturb asbestos, the fibers can float in the air. This makes them easy to inhale, and some may become lodged in... |
What is (are) systemic lupus erythematosus ? | Systemic lupus erythematosus (SLE) is a chronic disease that causes inflammation in connective tissues, such as cartilage and the lining of blood vessels, which provide strength and flexibility to structures throughout the body. The signs and symptoms of SLE vary among affected individuals, and can involve many organs ... |
What is (are) Chandler's syndrome ? | Chandler's syndrome is a rare eye disorder in which the single layer of cells lining the interior of the cornea proliferates, causing changes within the iris, corneal swelling, and unusually high pressure in the eye (glaucoma). This condition is one of three syndromes, along with progressive iris atrophy and Cogan-Rees... |
What is (are) Hypolipoproteinemia ? | Hypolipoproteinemia refers to unusually low levels of fats (lipids) in the blood. Low lipid levels may be caused by rare genetic conditions, or be a sign of another disorder such as overactive thyroid, anemia, undernutrition, cancer, chronic infection, or impaired absorption of foods from the digestive tract. Associate... |
What is (are) Overactive Bladder ? | Overactive bladder is a condition in which the bladder squeezes urine out at the wrong time. You may have overactive bladder if you have two or more of these symptoms: - You urinate eight or more times a day or two or more times at night - You have the sudden, strong need to urinate immediately - You leak u... |
What is (are) Atherosclerosis ? | Atherosclerosis is a disease in which plaque builds up inside your arteries. Plaque is a sticky substance made up of fat, cholesterol, calcium, and other substances found in the blood. Over time, plaque hardens and narrows your arteries. That limits the flow of oxygen-rich blood to your body. Atherosclerosis can lea... |
What is (are) lysinuric protein intolerance ? | Lysinuric protein intolerance is a disorder caused by the body's inability to digest and use certain protein building blocks (amino acids), namely lysine, arginine, and ornithine. Because the body cannot effectively break down these amino acids, which are found in many protein-rich foods, nausea and vomiting are typica... |
What is (are) ataxia with oculomotor apraxia ? | Ataxia with oculomotor apraxia is a condition characterized by progressive problems with movement. The hallmark of this condition is difficulty coordinating movements (ataxia), which is often the first symptom. Most affected people also have oculomotor apraxia, which makes it difficult to move their eyes side-to-side. ... |
What is (are) Norrie disease ? | Norrie disease is an inherited eye disorder that leads to blindness in male infants at birth or soon after birth. Additional symptoms may occur in some cases, although this varies even among individuals in the same family. Most affected individuals develop sensorineural hearing loss and many exhibit cognitive abnormali... |
What is (are) Hydrocephalus ? | Hydrocephalus is a condition in which the primary characteristic is excessive accumulation of cerebrospinal fluid (CSF) -- the clear fluid that surrounds the brain and spinal cord. This excessive accumulation results in an abnormal dilation of the spaces in the brain called ventricles. This dilation causes potentially ... |
What is (are) congenital insensitivity to pain ? | Congenital insensitivity to pain is a condition that inhibits the ability to perceive physical pain. From birth, affected individuals never feel pain in any part of their body when injured. People with this condition can feel the difference between sharp and dull and hot and cold, but cannot sense, for example, that a ... |
What is (are) Diabetic Neuropathies: The Nerve Damage of Diabetes ? | Peripheral neuropathy, also called distal symmetric neuropathy or sensorimotor neuropathy, is nerve damage in the arms and legs. Feet and legs are likely to be affected before hands and arms. Many people with diabetes have signs of neuropathy that a doctor could note but feel no symptoms themselves. Symptoms of periphe... |
What is (are) Weissenbacher-Zweymller syndrome ? | Weissenbacher-Zweymller syndrome is a condition that affects bone growth. It is characterized by skeletal abnormalities, hearing loss, and distinctive facial features. This condition has features that are similar to those of another skeletal disorder, otospondylomegaepiphyseal dysplasia (OSMED). Infants born with Weis... |
What is (are) Niemann-Pick Disease ? | Niemann-Pick disease (NP) refers to a group of inherited metabolic disorders known as lipid storage diseases. Lipids (fatty materials such as waxes, fatty acids, oils, and cholesterol) and proteins are usually broken down into smaller components to provide energy for the body. In Niemann-Pick disease, harmful quantitie... |
Do you have information about Palliative Care | Summary : Palliative care is treatment of the discomfort, symptoms, and stress of serious illness. It provides relief from distressing symptoms including - Pain - Shortness of breath - Fatigue - Constipation - Nausea - Loss of appetite - Problems with sleep It can also help you deal with t... |
What is (are) Wilson Disease ? | The liver is the bodys largest internal organ. The liver is called the bodys metabolic factory because of the important role it plays in metabolismthe way cells change food into energy after food is digested and absorbed into the blood. The liver has many important functions, including
- taking up, sto... |
What is (are) Waardenburg syndrome type 2 ? | Waardenburg syndrome type 2 is an inherited condition that can cause hearing loss and changes in coloring (pigmentation) of the hair, skin, and eyes. About 50 percent of those with Waardenburg syndrome type 2 have a hearing impairment or are deaf. Type 2 is one the most common forms of Waardenburg syndrome, along with... |
What is (are) What I need to know about Bladder Control for Women ? | Talking about bladder control problems is not easy for some people. You may feel embarrassed to tell your doctor. But talking about the problem is the first step in finding an answer. Also, you can be sure your doctor has heard it all before. You will not shock or embarrass your doctor or nurse.
... |
What is (are) Multifocal motor neuropathy ? | Multifocal motor neuropathy (MMN) is a rare neuropathy characterized by progressive, asymmetric muscle weakness and atrophy (wasting). Signs and symptoms include weakness in the hands and lower arms; cramping; involuntary contractions or twitching; and atrophy of affected muscles. MMN is thought to be due to an abnorma... |
What is (are) Cushing's Syndrome ? | Cushing's syndrome, also called hypercortisolism, is a rare endocrine disorder caused by chronic exposure of the body's tissues to excess levels of cortisol - a hormone naturally produced by the adrenal gland. Exposure to too much cortisol can occur from long-term use of synthetic glucocorticoid hormones to treat infla... |
What is (are) Thyroid Diseases ? | Your thyroid is a butterfly-shaped gland in your neck, just above your collarbone. It is one of your endocrine glands, which make hormones. Thyroid hormones control the rate of many activities in your body. These include how fast you burn calories and how fast your heart beats. All of these activities are your body's m... |
What is (are) Bipolar Disorder ? | Bipolar disorder is a serious mental illness. People who have it go through unusual mood changes. They go from very happy, "up," and active to very sad and hopeless, "down," and inactive, and then back again. They often have normal moods in between. The up feeling is called mania. The down feeling is depression. The... |
What is (are) Arteriovenous Malformations ? | Arteriovenous malformations (AVMs) are defects in your vascular system. The vascular system includes arteries, veins, and capillaries. Arteries carry blood away from the heart to other organs; veins carry blood back to the heart. Capillaries connect the arteries and veins. An AVM is a snarled tangle of arteries and vei... |
What is (are) Appendicitis ? | The appendix is a small, tube-like organ attached to the first part of the large intestine. It is located in the lower right part of the abdomen. It has no known function. A blockage inside of the appendix causes appendicitis. The blockage leads to increased pressure, problems with blood flow, and inflammation. If the ... |
What is (are) hypermethioninemia ? | Hypermethioninemia is an excess of a particular protein building block (amino acid), called methionine, in the blood. This condition can occur when methionine is not broken down (metabolized) properly in the body. People with hypermethioninemia often do not show any symptoms. Some individuals with hypermethioninemia e... |
What is (are) Cerebellar Degeneration ? | Cerebellar degeneration is a process in which neurons in the cerebellum - the area of the brain that controls coordination and balance - deteriorate and die. Diseases that cause cerebellar degeneration can also involve other areas of the central nervous system,including the spinal cord, medulla oblongata, cerebral cort... |
What is (are) G6PD Deficiency ? | Glucose-6-phosphate dehydrogenase (G6PD) deficiency is a genetic disorder that is most common in males. About 1 in 10 African American males in the United States has it. G6PD deficiency mainly affects red blood cells, which carry oxygen from the lungs to tissues throughout the body. The most common medical problem it c... |
What is (are) Dry Mouth ? | Sjgren's Syndrome Clinic National Institute of Dental and Craniofacial Research Building 10, Room 1N113 10 Center Drive MSC 1190 Bethesda, MD 20892-1190 301-435-8528 http://www.nidcr.nih.gov/Research/NIDCRLaboratories/ MolecularPhysiology/SjogrensSyndrome/default.htm |
What is (are) Phobias ? | A phobia is a type of anxiety disorder. It is a strong, irrational fear of something that poses little or no real danger. There are many specific phobias. Acrophobia is a fear of heights. Agoraphobia is a fear of public places, and claustrophobia is a fear of closed-in places. If you become anxious and extremely sel... |
What is (are) FG syndrome ? | FG syndrome is a genetic condition that affects many parts of the body and occurs almost exclusively in males. "FG" represents the surname initials of the first family diagnosed with the disorder. FG syndrome affects intelligence and behavior. Almost everyone with the condition has intellectual disability, which range... |
What is (are) Prescription and Illicit Drug Abuse ? | Addiction is a chronic disease in which a person craves, seeks, and continues to abuse a legal (medication, alcohol, tobacco) or an illicit (illegal) drug, despite harmful consequences. People who are addicted continue to abuse the substance even though it can harm their physical or mental health, lead to accidents, or... |
What is (are) 15q11.2 microdeletion ? | 15q11.2 microdeletion refers to a chromosome abnormality in which a tiny piece of genetic material on the long arm of chromosome 15 (at a location designated q11.2) is missing (deleted). The features of people with a 15q11.2 microdeletion vary widely. The most common features include developmental, motor, and language ... |
What is (are) Spasticity ? | Spasticity is a condition in which there is an abnormal increase in muscle tone or stiffness of muscle, which might interfere with movement, speech, or be associated with discomfort or pain. Spasticity is usually caused by damage to nerve pathways within the brain or spinal cord that control muscle movement. It may occ... |
What is (are) Kidney Failure: Eat Right to Feel Right on Hemodialysis ? | 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 is (are) Homocystinuria ? | Homocystinuria is an inherited disorder in which the body is unable to process certain building blocks of proteins (amino acids) properly. The most common form, called cystathionine beta-synthase deficiency, is characterized by dislocation of the lens in the eye, an increased risk of abnormal blood clots, skeletal abno... |
What is (are) nonsyndromic aplasia cutis congenita ? | Nonsyndromic aplasia cutis congenita is a condition in which babies are born with localized areas of missing skin (lesions). These areas resemble ulcers or open wounds, although they are sometimes already healed at birth. Lesions most commonly occur on the top of the head (skull vertex), although they can be found on t... |
What is (are) Parkinson's Disease ? | The Parkinsons Disease Biomarkers Identification Network, or PD-BIN, is an initiative developed by the National Institute of Neurological Disorders and Stroke to discover and validate biomarkers for Parkinsons disease. Biomarkers are measurable characteristics that can reveal whether the disease is developing or progre... |
Do you have information about Cloning | Summary : Cloning describes the processes used to create an exact genetic replica of another cell, tissue or organism. The copied material, which has the same genetic makeup as the original, is referred to as a clone. The most famous clone was a Scottish sheep named Dolly. There are three different types of cloning:... |
What is (are) Beckwith-Wiedemann syndrome ? | Beckwith-Wiedemann syndrome is a condition that affects many parts of the body. It is classified as an overgrowth syndrome, which means that affected infants are considerably larger than normal (macrosomia) and tend to be taller than their peers during childhood. Growth begins to slow by about age 8, and adults with th... |
What is (are) What I need to know about Lactose Intolerance ? | Lactose
*
intestine
lactase
,
enzyme
*See the Pronunciation Guide for tips on how to say the words in bold type. |
What is (are) Incontinentia Pigmenti ? | Incontinentia pigmenti (IP) is an inherited disorder of skin pigmentation that is also associated with abnormalities of the teeth, skeletal system, eyes, and central nervous system. It is one of a group of gene-linked diseases known as neurocutaneous disorders. In most cases, IP is caused by mutations in a gene called ... |
What is (are) Down Syndrome ? | Down syndrome is a condition in which a person is born with an extra copy of chromosome 21. People with Down syndrome can have physical problems, as well as intellectual disabilities. Every person born with Down syndrome is different. People with the syndrome may also have other health problems. They may be born wit... |
What is (are) Acanthamoeba - Granulomatous Amebic Encephalitis (GAE); Keratitis ? | Acanthamoeba is a microscopic, free-living ameba (single-celled living organism) commonly found in the environment that can cause rare, but severe, illness. Acanthamoeba causes three main types of illness involving the eye (Acanthamoeba keratitis), the brain and spinal cord (Granulomatous Encephalitis), and infections ... |
What is (are) Spondylocostal dysostosis 4 ? | Spondylocostal dysostosis is a group of conditions characterized by abnormal development of the bones in the spine and ribs. In the spine, the vertebrae are misshapen and fused. Many people with this condition have an abnormal side-to-side curvature of the spine (scoliosis). The ribs may be fused together or missing. T... |
What is (are) Danon disease ? | Danon disease is a condition characterized by weakening of the heart muscle (cardiomyopathy); weakening of the muscles used for movement, called skeletal muscles, (myopathy); and intellectual disability. Males with Danon disease usually develop the condition earlier than females and are more severely affected. Signs an... |
What is (are) Cerebellar degeneration ? | Cerebellar degeneration refers to the deterioration of neurons in the cerebellum (the area of the brain that controls muscle coordination and balance). Conditions that cause cerebellar degeneration may also affect other areas of the central nervous system, such as the spinal cord, the cerebral cortex, and the brain ste... |
What is (are) Collapsed Lung ? | A collapsed lung happens when air enters the pleural space, the area between the lung and the chest wall. If it is a total collapse, it is called pneumothorax. If only part of the lung is affected, it is called atelectasis. Causes of a collapsed lung include - Lung diseases such as pneumonia or lung cancer ... |
What is (are) Pilocytic astrocytoma ? | Pilocytic astrocytoma is an often benign, slow-growing tumor of the brain or spinal cord. The tumor may be in the form of a cyst and usually does not spread to nearby tissues. Symptoms vary depending upon the size and location of the tumor. Most symptoms result from increased pressure on the brain and include headaches... |
Do you have information about Chiropractic | Summary : Chiropractic is a health care profession. Chiropractors perform adjustments (manipulations) to the spine or other parts of the body. The goal is to correct alignment problems, ease pain, and support the body's natural ability to heal itself. They may also use other treatments including - Heat and ice ... |
What is (are) cystinuria ? | Cystinuria is a condition characterized by the buildup of the amino acid cystine, a building block of most proteins, in the kidneys and bladder. As the kidneys filter blood to create urine, cystine is normally absorbed back into the bloodstream. People with cystinuria cannot properly reabsorb cystine into their bloodst... |
What is (are) Farber's Disease ? | Farbers disease, also known as Farber's lipogranulomatosis, describes a group of inherited metabolic disorders called lipid storage diseases, in which excess amounts of lipids (oils, fatty acids, and related compounds) build up to harmful levels in the joints, tissues, and central nervous system. The liver, heart, and ... |
What is (are) Scabies ? | Scabies is an itchy skin condition caused by the microscopic mite Sarcoptes scabei. It is common all over the world, and can affect anyone. Scabies spreads quickly in crowded conditions where there is frequent skin-to-skin contact between people. Hospitals, child-care centers, and nursing homes are examples. Scabies ca... |
What is (are) Hydranencephaly ? | Hydranencephaly is a rare condition in which the brain's cerebral hemispheres are absent and replaced by sacs filled with cerebrospinal fluid (CSF). Affected infants may appear and act normal at birth, but irritability and hypertonia often develop within a few weeks. Other signs and symptoms may include seizures, hydro... |
What is (are) Dry Mouth ? | Dry mouth is the feeling that there is not enough saliva in your mouth. Everyone has a dry mouth once in a while - if they are nervous, upset or under stress. But if you have a dry mouth all or most of the time, it can be uncomfortable and can lead to serious health problems. Symptoms of dry mouth include - A ... |
What is (are) Cataract ? | National Eye Institute National Institutes of Health 2020 Vision Place Bethesda, MD 20892-3655 301-496-5248 E-mail: 2020@nei.nih.gov www.nei.nih.gov For more information about intraocular lenses, or IOLs, contact: U.S. Food and Drug Administration 10903 New Hampshire Avenue Silver Spring, MD 20993-0002 1-888-... |
What is (are) What I need to know about Hepatitis B ? | The liver is an organ that does many important things. You cannot live without a liver.
*See the Pronunciation Guide for tips on how to say the words in bold type.
The liver
- removes harmful chemicals from your blood - fights infection - helps digest food - stores ... |
What is (are) pseudohypoaldosteronism type 2 ? | Pseudohypoaldosteronism type 2 (PHA2) is caused by problems that affect regulation of the amount of sodium and potassium in the body. Sodium and potassium are important in the control of blood pressure, and their regulation occurs primarily in the kidneys. People with PHA2 have high blood pressure (hypertension) and h... |
What is (are) Antiphospholipid Antibody Syndrome ? | Antiphospholipid (AN-te-fos-fo-LIP-id) antibody syndrome (APS) is an autoimmune disorder. Autoimmune disorders occur if the body's immune system makes antibodies that attack and damage tissues or cells.
Antibodies are a type of protein. They usually help defend the body against infections. In APS, howe... |
What is (are) Aneurysms ? | An aneurysm is a bulge or "ballooning" in the wall of an artery. Arteries are blood vessels that carry oxygen-rich blood from the heart to other parts of the body. If an aneurysm grows large, it can burst and cause dangerous bleeding or even death. Most aneurysms occur in the aorta, the main artery that runs from t... |
Do you have information about Dietary Supplements | Summary : Dietary supplements are vitamins, minerals, herbs, and many other products. They can come as pills, capsules, powders, drinks, and energy bars. Supplements do not have to go through the testing that drugs do. Some supplements can play an important role in health. For example, calcium and vitamin D are impo... |
What is (are) Filippi syndrome ? | Filippi syndrome is an extremely rare genetic condition characterized by a small head (microcephaly), webbing of the fingers and toes (syndactyly), intellectual disability, growth delay, and distinctive facial features (high and broad nasal bridge, thin nostrils, small chin or micrognathia, and a high frontal hairline)... |
What is (are) combined malonic and methylmalonic aciduria ? | Combined malonic and methylmalonic aciduria (CMAMMA) is a condition characterized by high levels of certain chemicals, known as malonic acid and methylmalonic acid, in the body. A distinguishing feature of this condition is higher levels of methylmalonic acid than malonic acid in the urine, although both are elevated. ... |
What is (are) Lung Cancer ? | The body is made up of many types of cells. Normally, cells grow, divide, and produce more cells as needed to keep the body healthy and functioning properly. Sometimes, however, the process goes wrong -- cells become abnormal and form more cells in an uncontrolled way. These extra cells form a mass of tissue, called a ... |
What is (are) Dowling-Degos disease ? | Dowling-Degos disease is a skin condition characterized by a lacy or net-like (reticulate) pattern of abnormally dark skin coloring (hyperpigmentation), particularly in the body's folds and creases. These skin changes typically first appear in the armpits and groin area and can later spread to other skin folds such as ... |
Do you have information about Personal Health Records | Summary : You've probably seen your chart at your doctor's office. In fact, you may have charts at several doctors' offices. If you've been in the hospital, you have a chart there, too. These charts are your medical records. They may be on paper or electronic. To keep track of all this information, it's a good idea to ... |
What is (are) Mayer-Rokitansky-Kster-Hauser syndrome ? | Mayer-Rokitansky-Kster-Hauser (MRKH) syndrome is a disorder that occurs in females and mainly affects the reproductive system. This condition causes the vagina and uterus to be underdeveloped or absent. Affected women usually do not have menstrual periods due to the absent uterus. Often, the first noticeable sign of MR... |
What is (are) Chromosome 15q deletion ? | Chromosome 15q deletion is a chromosome abnormality that occurs when there is a missing copy of the genetic material located on the long arm (q) of chromosome 15. The severity of the condition and the signs and symptoms depend on the size and location of the deletion and which genes are involved. Features that often oc... |
What is (are) Testicular Disorders ? | Testicles, or testes, make male hormones and sperm. They are two egg-shaped organs inside the scrotum, the loose sac of skin behind the penis. It's easy to injure your testicles because they are not protected by bones or muscles. Men and boys should wear athletic supporters when they play sports. You should examine... |
What is (are) Amyopathic dermatomyositis ? | Amyopathic dermatomyositis is a form of dermatomyositis characterized by the presence of typical skin findings without muscle weakness. Some of the skin changes that suggest dermatomyositis include a pink rash on the face, neck, forearms and upper chest; Gottron's papules and heliotrope eyelids. Pruritis and photosensi... |
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