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medical terminology Endocrinology

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Term
Definition
acromegaly   Chronic condition in adults with excessive growth hormone; results in elongation and enlargement of bones of head and extremities  
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adrenal feminization   Development of female secondary sexual characteristics (such as breasts) in male; result of increased estrogen secretion by adrenal cortex  
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adrenal virilism   Development of male secondary sexual characteristics (such as deeper voice and facial hair) in female; result of increased androgen secretion by adrenal cortex  
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blood serum test   Blood test to measure level of substances such as hormones in bloodstream; used to study function of endocrine gland  
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corticosteroids   In addition to normal function, these hormones from adrenal cortex also have strong anti-inflammatory action; may be used to treat severe chronic inflammatory diseases such as rheumatoid arthritis  
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cretinism   Congenital condition causing lack of thyroid hormones; results in poor physical and mental development  
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Cushing syndrome   Condition resulting from hypersecretion of adrenal cortex; may be product of adrenal gland tumor; symptoms include weakness, edema, excess hair growth, skin discoloration, and osteoporosis  
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diabetes insipidus (DI)   Condition caused by insufficient antidiuretic hormone secreted by posterior lobe of pituitary gland; symptoms include polyuria and polydipsia  
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diabetes mellitus (DM)   Chronic disorder of sugar metabolism; symptoms include hyperglycemia and glycosuria; two different forms of diabetes mellitus: insulin-dependent diabetes mellitus (IDDM) or type 1, and non–insulin-dependent diabetes mellitus (NIDDM) or type 2.  
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dwarfism   Being excessively short in height; may be result of lack of growth hormone  
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exophthalmos   Condition in which eyeballs protrude, such as in Graves disease; commonly caused by hypersecretion of thyroid hormones  
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fasting blood sugar (FBS)   Blood test to measure amount of sugar in bloodstream after a 12-hour fast  
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gigantism   Excessive growth of body due to hypersecretion of growth hormone in a child or teenager  
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glucose tolerance test (GTT)   Test for initial diagnosis of diabetes mellitus; patient is given dose of glucose; then blood samples are taken at regular intervals to determine patient’s ability to use glucose properly  
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goiter   Enlargement of the thyroid gland  
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Graves disease   Condition resulting from hypersecretion of thyroid hormones; symptoms include exophthalmos and goiter  
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Hashimoto disease   Chronic autoimmune form of thyroiditis, results in hyposecretion of thyroid hormones  
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hormone replacement therapy   Artificial replacement of hormones in patients with hyposecretion disorders; available in pill, injection, or adhesive skin patch forms  
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insulin-dependent diabetes mellitus (IDDM)   Also called type 1 diabetes mellitus; tends to develop early in life; pancreas stops producing insulin; may be autoimmune disease; patient must take insulin injections  
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myxedema   Condition resulting from hyposecretion of thyroid hormones in an adult; symptoms include anemia, slow speech, swollen facial features, puffy and dry skin, drowsiness, and mental sluggishness  
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non–insulin-dependent diabetes mellitus   Also called type 2 diabetes mellitus; typically develops later in life; pancreas produces normal to high levels of insulin but cells fail to respond; patients may take medication to improve insulin functions  
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pheochromocytoma   Usually benign tumor of adrenal medulla; secretes excessive amount of epinephrine; symptoms include anxiety, heart palpitations, dyspnea, profuse sweating, headache, and nausea  
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radioactive iodine uptake (RAIU)   Test of thyroid function that measures how much radioactively tagged iodine is removed from the bloodstream by the thyroid gland  
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radioimmunoassay (RIA)   Test used to measure levels of hormones in the plasma of the bloo  
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tetany   Nerve irritability and painful muscle cramps resulting from hypocalcemia; hypoparathyroidism is one cause  
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thyroid function test (TFT)   Blood test to measure levels of thyroxine, triiodothyronine, and thyroid-stimulating hormone in the bloodstream to evaluate thyroid function  
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thyroid scan   Test in which radioactive iodine is administered that localizes in the thyroid gland; gland is visualized with a scanning device; able to detect thyroid gland tumors  
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thyrotoxicosis   Condition resulting from extreme hypersecretion of thyroid hormones; symptoms include rapid heart action, tremors, enlarged thyroid gland, exophthalmos, and weight loss  
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