acromegaly medical definition
Person with acromegaly. Acromegaly is a disorder characterized by an enlarged face and hands. As the face changes shape, the jaw may protrude, the nose may enlarge, and the lips may thicken. Acromegaly is a hormonal disorder that develops when your pituitary gland produces too much growth hormone during adulthood. When this happens, your bones increase in size, including those of your hands, feet and face. Acromegaly usually affects middle-aged adults.