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goiter (goi´tәr)   enlargement of the thyroid gland, causing a swelling in the front part of the neck. If there is evidence of pressure against the throat, or the possibility of a malignancy, the goiter may be removed surgically. Simple endemic goiter is usually caused by lack of iodine in the diet. In Graves disease, goiter is accompanied by excessive thyroid hormones in the blood with symptoms of hyperthyroidism. adj., goit´rous., adj.




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