substernal goiter

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• substernal goiter — a goiter in which a portion is beneath the sternum …   Medical dictionary

• goiter — A chronic enlargement of the thyroid gland, not due to a neoplasm, occurring endemically in certain localities, especially regions where glaciation occurred and the soil is low in iodine, and sporadically elsewhere. SYN: struma (1). [Fr. from L.… …   Medical dictionary