| goiter, endemic | Enlargement of the thyroid gland in a significantly large fraction of a population group, generally considered to be due to insufficient iodine in the diet. (12 Dec 1998) |
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| goiter, iodide | Just as too little iodine can cause thyroid disease, so may prolonged intake of too much iodine also lead to the development of goiter (swelling of the thyroid gland) and hypothyroidism (abnormally low thyroid activity). Certain foods and medications contain large amounts of iodine. Examples include seaweed; iodine-rich expectorants (such as SSKI and Lugol's solution) used in the treatment of cough, asthma, chronic pulmonary disease; and amiodarone (Cardorone), an iodine-rich medication used in the control of abnormal heart rhythms (cardiac arrhythmias). (12 Dec 1998) |
| goiter, nodular | An enlarged thyroid gland containing circumscribed nodules within its substance. (12 Dec 1998) |
| goiter, substernal | An enlarged thyroid gland where the enlarged gland is situated beneath the sternum. (12 Dec 1998) |
| goiter, toxic multinodular | Condition in which the thyroid gland contains multiple lumps (nodules) that are overactive and produce excess thyroid hormones. This condition is also known as Parry's disease or Plummer's disease. (12 Dec 1998) |
| microfollicular goiter | Goiter in which the glandular tissue consists of unusually small colloid filled follicles and areas of undifferentiated tissue with indistinct follicle formation. (05 Mar 2000) |
| wandering goiter | A freely movable goiter that is sometimes above and sometimes below the sternal notch. Synonym: wandering goiter. (05 Mar 2000) |
| colloid goiter | A form of goiter in which the contents of the follicles increase greatly, causing pressure atrophy of the epithelium so that the gelatinous matter predominates in the tumour. Synonym: struma colloides. (05 Mar 2000) |
| multinodular goiter | <radiology> Middle-aged females, enlarged thyroid, multiple cold, warm and hot areas, may be mimicked by thyroiditis (12 Dec 1998) |
| cystic goiter | An enlargement in the thyroid region due to the presence of one or more cysts within the gland. (05 Mar 2000) |
| simple goiter | Thyroid enlargement unaccompanied by constitutional effects, e.g., hypo-or hyperthyroidism, commonly caused by inadequate dietary intake of iodine. (05 Mar 2000) |
| substernal goiter | Enlargement of the thyroid gland, chiefly of the lower part of the isthmus, palpable with difficulty or not at all. (05 Mar 2000) |
| nontoxic goiter | Goiter not accompanied by hyperthyroidism. (05 Mar 2000) |
| suffocative goiter | A goiter that by pressure causes extreme dyspnea. (05 Mar 2000) |
| diffuse goiter | Goiter in which the morbid process involves the whole gland, as opposed to nodular goiter or thyroid adenoma. (05 Mar 2000) |