| iodine-induced hyperthyroidism | <endocrinology> Induction of thyrotoxicosis in a previously euthyroid individual as a result of exposure to large quantities of iodine. It occurs most often in areas of endemic iodine-deficient goiter and in patients with multinodular goiter. It can also can develop following use of iodine-containing agents for diagnostic studies. Synonym: iodine-induced hyperthyroidism. (05 Mar 2000) |
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| masked hyperthyroidism | Hyperthyroidism occurring without the usual manifestations, especially lack of hyperactivity and eye findings, often with hypoactivity, even somnolence. Manifestation can be limited to heart failure. (05 Mar 2000) |
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| primary hyperthyroidism | Hyperthyroidism due to a disorder originating within the thyroid gland, in contrast to one of pituitary origin; may be due to generalised overactivity of the gland, to a localised hyperactive nodule, or to circulating antibody, which stimulates the gland (long-acting thyroid stimulator). (05 Mar 2000) |
| hereditary hyperthyroidism | A rare inherited (autosomal dominant) disorder with constitutive stimulation of the thyrocytes. (05 Mar 2000) |
| secondary hyperthyroidism | Hyperthyroidism due to stimulation of the thyroid gland by an excess of thyrotrophin secreted by the pituitary gland. (05 Mar 2000) |
| hyperthyroidism | 1. <physiology> Excessive functional activity of the thyroid gland. 2. <disease> The abnormal condition resulting from hyperthyroidism marked by increased metabolic rate, enlargement of the thyroid gland, rapid heart rate, high blood pressure and various secondary symptoms. (18 Nov 1997) |
| ophthalmic hyperthyroidism | Same as Basedow's disease. Origin: So called after Dr. Graves, of Dublin. Source: Websters Dictionary (01 Mar 1998) |