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| This glossary contains: 19186 medical terms |
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Acne
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Acne Is a common inflammatory disease of the facial skin seen most frequently between the ages of 10 and 25 years and characterized by blackheads, whiteheads and blemishes composed of papules and pustules. Acne is an inflammatory disease of the sebaceous glands, the glands that produce sebum. Acne usually affects the face, back, and chest. In severe cases it can develop into cysts and nodules that can result in scarring. While its cause is unknown, it is most often associated with hormonal activity within teenagers. In severe cases a person should consult with a dermatologist for a specific acne treatment.
RELATED TERMS--------------------------------------
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.
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).
Papules
A small circumscribed, solid, elevated lesion of the skin.
Acne
Is a common inflammatory disease of the facial skin seen most frequently between the ages of 10 and 25 years and characterized by blackheads, whiteheads and blemishes composed of papules and pustules. Acne is an inflammatory disease of the sebaceous glands, the glands that produce sebum. Acne usually affects the face, back, and chest. In severe cases it can develop into cysts and nodules that can result in scarring. While its cause is unknown, it is most often associated with hormonal activity within teenagers. In severe cases a person should consult with a dermatologist for a specific acne treatment.
Sebum
The oily substance produced by sebaceous glands.
Chest
The area of the body located between the neck and the abdomen. The chest contains the lungs, the heart and part of the aorta. The walls of the chest are supported by the dorsal vertebrae, the ribs, and the sternum.
Dermatologist
A doctor who specializes in the diagnosis and treatment of skin problems.
SIMILAR TERMS--------------------------------------
PREVIOUS AND NEXT TERMS--------------------------------------
Antibody
An infection-fighting protein molecule in blood or secretory fluids that tags, neutralizes, and helps destroy pathogenic microorganisms (eg, bacteria, viruses) or toxins. Antibodies, known generally as immunoglobulins, are made and secreted by B-lymphocytes in response to stimulation by antigens. Each specific antibody binds only to the specific antigen that stimulated its production.
Amenorrhea
The absence of menstrual bleeding in a woman who has not gone through menopause; may be due to such things as prolonged stress, thyroid disorders, excessive exercise, eating disorders, premature ovarian failure and others.
Adenine
A purine base found in RNA and DNA; in double-stranded DNA adenine pairs with the pyrimidine thymine.
Astigmatism
Astigmatism is caused by an uneven or asymmetrical curvature of the cornea, which prevents the eye from focusing clearly at any distance. Astigmatism causes certain amounts of distortion or pitched images because of the uneven bending of the light rays entering the eye.
Amniocentesis
Prenatal diagnostic procedure in which a small amount of amniotic fluid is withdrawn through a needle inserted through a pregnant woman's abdominal wall into the uterus, then examined in a laboratory either to detect genetic abnormalities in a fetus or for other purposes such as father identification.
Acne
Anxiety
A psychological and/or biological response to stress. Feelings of anxiety involve discomforting apprehension or concern, which may include symptoms such as cognitive difficulties, hypersensitivity, dizziness, muscular weakness, breathing difficulties, irregular heart beat, sweating, and sensations of fear. Typically, anxiety is a natural and healthy response to life experiences. However, exaggerated or chronic anxiety often indicates an anxiety disorder. Anxiety can be produced by external stress (exogenous anxiety) or internal stress (endogenous anxiety).
Adrenocortical carcinoma
Adrenocortical carcinoma is a carcinoma of the cortex (outer layer) of the adrenal gland. While most tumors of the adrenal cortex are benign (adenomas) and only occasionally cause Cushing's syndrome, the malignant form makes up about 3% of all cortical tumors and requires surgery and sometimes chemotherapy. Excess cortisol production may require suppression with ketoconazole or metyrapone. Production of aldosterone or androgens by carcinomas is extremely rare.
AIDS
A medical condition where the immune system cannot function properly and protect the body from disease. As a result, the body cannot defend itself against infections (like pneumonia). Aids is caused by the Human Immunodifiency Virus (HIV). This virus is spread through direct contact with the blood and body fluids of an infected individual. High-risk activities include unprotected sexual intercourse and intravenous drug use (sharing needles). There is no cure for AIDS; however, research efforts are on going to develop a vaccine.
Anal cancer
Colorectal cancer includes cancerous growths in the colon, rectum and appendix.It is the third most common form of cancer and the second leading cause of death among cancers in the Western world. Many colorectal cancers are thought to arise from polyps in the colon. These mushroom-like growths are usually benign, but some may develop into cancer over time. Diagnosis is by colonoscopy. Therapy is usually through surgery, with many cases also requiring chemotherapy.
Angina
A recurring pain or discomfort in the chest that happens when some part of the heart does not receive enough blood. It is a common symptom of coronary heart disease, which occurs when vessels that carry blood to the heart become narrowed and blocked due to atherosclerosis. Angina feels like a pressing or squeezing pain, usually in the chest under the breast bone, but sometimes in the shoulders, arms, neck, jaws, or back. Angina is usually is brought on by exertion, and relieved within a few minutes by resting or by taking prescribed angina medicine. Commonly called chest pain, heart pain or angina pectoris.
RELATED TERMS--------------------------------------
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.
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).
Papules
A small circumscribed, solid, elevated lesion of the skin.
Acne
Is a common inflammatory disease of the facial skin seen most frequently between the ages of 10 and 25 years and characterized by blackheads, whiteheads and blemishes composed of papules and pustules. Acne is an inflammatory disease of the sebaceous glands, the glands that produce sebum. Acne usually affects the face, back, and chest. In severe cases it can develop into cysts and nodules that can result in scarring. While its cause is unknown, it is most often associated with hormonal activity within teenagers. In severe cases a person should consult with a dermatologist for a specific acne treatment.
Sebum
The oily substance produced by sebaceous glands.
Chest
The area of the body located between the neck and the abdomen. The chest contains the lungs, the heart and part of the aorta. The walls of the chest are supported by the dorsal vertebrae, the ribs, and the sternum.
Dermatologist
A doctor who specializes in the diagnosis and treatment of skin problems.
SIMILAR TERMS--------------------------------------
PREVIOUS AND NEXT TERMS--------------------------------------
Antibody
An infection-fighting protein molecule in blood or secretory fluids that tags, neutralizes, and helps destroy pathogenic microorganisms (eg, bacteria, viruses) or toxins. Antibodies, known generally as immunoglobulins, are made and secreted by B-lymphocytes in response to stimulation by antigens. Each specific antibody binds only to the specific antigen that stimulated its production.
Amenorrhea
The absence of menstrual bleeding in a woman who has not gone through menopause; may be due to such things as prolonged stress, thyroid disorders, excessive exercise, eating disorders, premature ovarian failure and others.
Adenine
A purine base found in RNA and DNA; in double-stranded DNA adenine pairs with the pyrimidine thymine.
Astigmatism
Astigmatism is caused by an uneven or asymmetrical curvature of the cornea, which prevents the eye from focusing clearly at any distance. Astigmatism causes certain amounts of distortion or pitched images because of the uneven bending of the light rays entering the eye.
Amniocentesis
Prenatal diagnostic procedure in which a small amount of amniotic fluid is withdrawn through a needle inserted through a pregnant woman's abdominal wall into the uterus, then examined in a laboratory either to detect genetic abnormalities in a fetus or for other purposes such as father identification.
Acne
Anxiety
A psychological and/or biological response to stress. Feelings of anxiety involve discomforting apprehension or concern, which may include symptoms such as cognitive difficulties, hypersensitivity, dizziness, muscular weakness, breathing difficulties, irregular heart beat, sweating, and sensations of fear. Typically, anxiety is a natural and healthy response to life experiences. However, exaggerated or chronic anxiety often indicates an anxiety disorder. Anxiety can be produced by external stress (exogenous anxiety) or internal stress (endogenous anxiety).
Adrenocortical carcinoma
Adrenocortical carcinoma is a carcinoma of the cortex (outer layer) of the adrenal gland. While most tumors of the adrenal cortex are benign (adenomas) and only occasionally cause Cushing's syndrome, the malignant form makes up about 3% of all cortical tumors and requires surgery and sometimes chemotherapy. Excess cortisol production may require suppression with ketoconazole or metyrapone. Production of aldosterone or androgens by carcinomas is extremely rare.
AIDS
A medical condition where the immune system cannot function properly and protect the body from disease. As a result, the body cannot defend itself against infections (like pneumonia). Aids is caused by the Human Immunodifiency Virus (HIV). This virus is spread through direct contact with the blood and body fluids of an infected individual. High-risk activities include unprotected sexual intercourse and intravenous drug use (sharing needles). There is no cure for AIDS; however, research efforts are on going to develop a vaccine.
Anal cancer
Colorectal cancer includes cancerous growths in the colon, rectum and appendix.It is the third most common form of cancer and the second leading cause of death among cancers in the Western world. Many colorectal cancers are thought to arise from polyps in the colon. These mushroom-like growths are usually benign, but some may develop into cancer over time. Diagnosis is by colonoscopy. Therapy is usually through surgery, with many cases also requiring chemotherapy.
Angina
A recurring pain or discomfort in the chest that happens when some part of the heart does not receive enough blood. It is a common symptom of coronary heart disease, which occurs when vessels that carry blood to the heart become narrowed and blocked due to atherosclerosis. Angina feels like a pressing or squeezing pain, usually in the chest under the breast bone, but sometimes in the shoulders, arms, neck, jaws, or back. Angina is usually is brought on by exertion, and relieved within a few minutes by resting or by taking prescribed angina medicine. Commonly called chest pain, heart pain or angina pectoris.
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This dictionary contains 19186 terms.
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