Acromegaly is a rare hormonal disorder that occurs when pituitary gland overproduces growth hormone in the body. Normally, growth hormone (GH) is produced by pituitary gland present in the brain but any kind of benign or non-cancerous tumor in the pituitary gland may result in excessive production of the growth hormone. Such non-cancerous tumors are called adenomas.
Both gigantism and acromegaly are hormonal disorder syndromes caused due to the over secretion of growth hormone, a condition called as hypersomatotropism. Both these syndromes mostly occur due to a pituitary adenoma. Too much of growth hormone in children indicates gigantism and is extremely rare. Acromegaly in adults mainly occurs in middle-aged men and women.