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This condition can occur with other autoimmune disorders. In rare cases, thyroid cancer may develop.
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A goiter is an enlargement of the thyroid gland. It is not cancer.There are different kinds of goiters.
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Goiter is a swelling in the neck, caused by a malfunction of the thyroid gland.The thyroid gland, located in the base of the neck, absorbs iodine from the blood and uses this to produce hormones that regulate many body functions, including.growth,...
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Most cases of goiter in the developing world are due to an iodine deficiency. Unable to meet the body''s hormonal needs, the thyroid becomes enlarged to compensate.[© Lester V.
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Goiter is an enlargement of the thyroid gland. It may be diffuse, involving all thyroid tissue, or it may be caused by one or more lumps(nodules)—called nodular goiter.
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Goiter refers to any visible enlargement of the thyroid gland.The thyroid gland sits astride the trachea(windpipe) and is shaped like a butterfly. It makes thyroxin, a hormone that regulates the metabolic activity of the body, rather like the gas ...
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Hypothyroidism is a condition in which the thyroid gland does not make enough thyroid hormone.
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Hypothyroidism, or a condition of insufficient thyroid hormone in the body, develops when the thyroid gland fails to produce or secrete as much thyroxine(T 4) and triiodothyronine(T 3) as the body needs. Because T 4 regulates such essential functi...
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Hypothyroidism, or underactive thyroid, develops when the thyroid gland fails to produce or secrete as much thyroxine(T 4) and triiodothyonine(T 3) as the body needs. Because these thyroid hormones regulate such essential functions as heart rate, ...
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Hypothyroidism, or underactive thyroid, develops when the thyroid gland fails to produce or secrete as much thyroxine(T 4) as the body needs. Because T 4 regulates such essential functions as heart rate, digestion, physical growth, and mental deve...
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Birth defects are physical abnormalities that are present at birth; they are also called congenital abnormalities. More than 3,000 have been identified.Birth defects are found in 2-3% of all newborn infants.
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Prevention of birth defects with folic acid(folate).
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Any unusual variation or abnormality in the shape, structure, and/or function of an organ, body part, or tissue is commonly referred to as a birth defect. However, congenital anomaly is the more accurate and preferred term, since birth defect can ...
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Defects present at birth, resulting from hereditary factors, environmental influences, or maternal illness.Birth or congenital defects are present at birth and result from hereditary factors, environmental influences, or maternal illness. Such def...
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A congenital anomaly may be viewed as a physical, metabolic, or anatomic deviation from the normal pattern of development that is apparent at birth or detected during the first year of life. Under this definition, Mendelian genetic disorders(e.g.,...
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Imprecise term, primarily used by laypeople, to refer to mental conditions.This term is widely used, but has no precise definition. In fact, many mental health professionals feel the implied distinction between mental and physical disorders oversi...
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Negative symptoms are thoughts, feelings, or behaviors normally present that are absent or diminished in a person with a mental disorder.Examples of negative symptoms are social withdrawal, apathy(decreased motivation), poverty of speech(brief rep...
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Positive symptoms are thoughts, behaviors, or sensory perceptions present in a person with a mental disorder, but not present in people in the normal population.Examples of positive symptoms are hallucinations(seeing, hearing, or smelling things n...
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Cardiovascular disease is a general diagnostic category consisting of several separate diseases of the heart and circulatory system. Cardiovascular diseases have been the major health problem and the leading cause of death in the United States for...
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It usually is in the top five causes of death in lesser-developed countries. Diseases of the cardiovascular system include those that compromise the pumping ability of the heart, cause failure of the valves, or result in narrowing or hardening of ...
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