What condition results from excessive secretion of growth hormone in adults?

The condition that results from excessive secretion of growth hormone in adults is acromegaly. In adults, if growth hormone levels are elevated, it leads to the abnormal growth of bones and tissues, particularly noticeable in the hands, feet, and face. This occurs due to the hormone's effects on cartilage and bone metabolism. Acromegaly primarily arises from a pituitary adenoma, which is a benign tumor that secretes excess growth hormone.

On the other hand, gigantism occurs in children whose growth plates have not yet closed, resulting in a proportional increase in height along with enlarged body structures. Hypopituitarism involves decreased secretion of pituitary hormones and is not related to excessive hormone secretion. Cushing's syndrome results from elevated levels of cortisol, not growth hormone. Thus, acromegaly specifically pertains to conditions stemming from elevated growth hormone levels in adults.