Goiter [Disease/Finding] Goiter Goiter Enlargement of the THYROID GLAND that may increase from about 20 grams to hundreds of grams in human adults. Goiter is observed in individuals with normal thyroid function (euthyroidism), thyroid deficiency (HYPOTHYROIDISM), or hormone overproduction (HYPERTHYROIDISM). Goiter may be congenital or acquired, sporadic or endemic (GOITER, ENDEMIC). C0018021 3716002 M0009516 N0000001371 D006042 C2920 1022351 Thyroid Diseases [Disease/Finding]