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Atopic dermatitis
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Atopic dermatitisA skin disease characterized by areas of severe itching, redness, scaling, and loss of the surface of the skin (excoriation). When the eruption (rash) has been present for a prolonged time, chronic changes occur due to the constant scratching and rubbing known as lichenification (thickening of the skin with accentuation of the skin lines to form a crisscross pattern).
RELATED TERMS--------------------------------------
Skin
Skin is an organ of the integumentary system; which is composed of a layer of tissues that protect underlying muscles and organs. Skin is used for insulation, vitamin D production, sensation, and excretion (through sweat).
Disease
Illness or sickness often characterized by typical patient problems (symptoms) and physical findings (signs). Disruption sequence: The events that occur when a fetus that is developing normally is subjected to a destructive agent such as the rubella (German measles) virus.
Eruption
Process of teeth protruding through the gums
Chronic
Ongoing or recurring. Chronic medical conditions include diabetes, epilepsy, and chronic fatigue syndrome.
SIMILAR TERMS--------------------------------------
Atopic
Prone to allergies or characterized by allergy.
Atopy
A term used by allergists to describe IgE-mediated anaphylactic responses in humans, usually genetically determined.
PREVIOUS AND NEXT TERMS--------------------------------------
Atom
The smallest part of any material that cannot be broken up by chemical means. Each atom has a center (the nucleus) which contains protons and neutrons. Electrons orbit around the nucleus. The atom is primarily empty space.
Atonia, REM sleep
A frightening form of paralysis that occurs when a person suddenly finds himself or herself unable to move for a few minutes, most often upon falling asleep or waking up. Commonly called sleep paralysis, the condition is due to an ill-timed disconnection between the brain and the body.
Atonic
Without normal muscle tone or strength. An atonic seizure is one in which the person suddenly loses muscle tone and strength and cannot sit or stand upright and, unless supported, falls down.
Atonic seizure
A seizure in which the person suddenly loses muscle tone and strength and, unless supported, falls down. Also called drop attack or drop seizure. Atonic means a lack of muscle tone and strength.
Atopic
Prone to allergies or characterized by allergy.
Atopic dermatitis
Atorvastatin
A medication that lowers the level of cholesterol in the blood. Atorvastatin is a statin drug. All statins prevent the production of cholesterol in the liver by blocking the enzyme that makes cholesterol, HMGCoA reductase. They lower total blood cholesterol as well as low-density lipoprotein (LDL) cholesterol levels. Lowering LDL cholesterol levels retards progression and may even reverse coronary artery disease. Unlike the other statins, atorvastatin can also reduce the concentration of triglycerides in the blood. (High blood concentrations of triglycerides have been associated with coronary artery disease.) The brand name of atorvastin is Lipitor.
Atresia, anal
Congenital absence of an opening at the bottom end of the intestinal tract. Also called imperforate anus. Occurs in about 1 in 5,000 births. It is corrected by surgery. Atresia refers to the absence of a normal opening.
Atresia, aortic
"Congenital absence of the normal valvular opening from the left ventricle of the heart into the aorta. ""Atresia"" here refers to the absence of a normal opening."
Atresia, biliary
Congenital absence or closure of the major bile ducts, the ducts that drain bile from the liver.
Atrial
Pertaining to the atria, the upper chambers of the heart, as in atrial fibrillation and atrial septal defect.
RELATED TERMS--------------------------------------
Skin
Skin is an organ of the integumentary system; which is composed of a layer of tissues that protect underlying muscles and organs. Skin is used for insulation, vitamin D production, sensation, and excretion (through sweat).
Disease
Illness or sickness often characterized by typical patient problems (symptoms) and physical findings (signs). Disruption sequence: The events that occur when a fetus that is developing normally is subjected to a destructive agent such as the rubella (German measles) virus.
Eruption
Process of teeth protruding through the gums
Chronic
Ongoing or recurring. Chronic medical conditions include diabetes, epilepsy, and chronic fatigue syndrome.
SIMILAR TERMS--------------------------------------
Atopic
Prone to allergies or characterized by allergy.
Atopy
A term used by allergists to describe IgE-mediated anaphylactic responses in humans, usually genetically determined.
PREVIOUS AND NEXT TERMS--------------------------------------
Atom
The smallest part of any material that cannot be broken up by chemical means. Each atom has a center (the nucleus) which contains protons and neutrons. Electrons orbit around the nucleus. The atom is primarily empty space.
Atonia, REM sleep
A frightening form of paralysis that occurs when a person suddenly finds himself or herself unable to move for a few minutes, most often upon falling asleep or waking up. Commonly called sleep paralysis, the condition is due to an ill-timed disconnection between the brain and the body.
Atonic
Without normal muscle tone or strength. An atonic seizure is one in which the person suddenly loses muscle tone and strength and cannot sit or stand upright and, unless supported, falls down.
Atonic seizure
A seizure in which the person suddenly loses muscle tone and strength and, unless supported, falls down. Also called drop attack or drop seizure. Atonic means a lack of muscle tone and strength.
Atopic
Prone to allergies or characterized by allergy.
Atopic dermatitis
Atorvastatin
A medication that lowers the level of cholesterol in the blood. Atorvastatin is a statin drug. All statins prevent the production of cholesterol in the liver by blocking the enzyme that makes cholesterol, HMGCoA reductase. They lower total blood cholesterol as well as low-density lipoprotein (LDL) cholesterol levels. Lowering LDL cholesterol levels retards progression and may even reverse coronary artery disease. Unlike the other statins, atorvastatin can also reduce the concentration of triglycerides in the blood. (High blood concentrations of triglycerides have been associated with coronary artery disease.) The brand name of atorvastin is Lipitor.
Atresia, anal
Congenital absence of an opening at the bottom end of the intestinal tract. Also called imperforate anus. Occurs in about 1 in 5,000 births. It is corrected by surgery. Atresia refers to the absence of a normal opening.
Atresia, aortic
"Congenital absence of the normal valvular opening from the left ventricle of the heart into the aorta. ""Atresia"" here refers to the absence of a normal opening."
Atresia, biliary
Congenital absence or closure of the major bile ducts, the ducts that drain bile from the liver.
Atrial
Pertaining to the atria, the upper chambers of the heart, as in atrial fibrillation and atrial septal defect.
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This dictionary contains 19186 terms.
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