Acromegaly
Overview
Plain-Language Overview
Acromegaly is a rare hormonal disorder that affects the body's growth system. It occurs when the pituitary gland produces too much growth hormone, leading to excessive growth of bones and tissues. This condition mainly affects the hands, feet, and face, causing them to become larger and thicker over time. People with acromegaly may notice changes in their facial features, such as a protruding jaw or enlarged nose. The excess hormone can also cause problems with the heart, joints, and metabolism, impacting overall health. Early diagnosis is important to manage symptoms and prevent complications.
Clinical Definition
Acromegaly is a chronic endocrine disorder characterized by excessive secretion of growth hormone (GH), usually due to a pituitary adenoma. The persistent elevation of GH leads to increased production of insulin-like growth factor 1 (IGF-1), which mediates the abnormal growth of soft tissues and bones, particularly in the hands, feet, and facial bones. This condition typically presents in adults after epiphyseal plate closure, distinguishing it from gigantism, which occurs in children. Clinical features include coarse facial features, enlarged extremities, and systemic complications such as cardiomyopathy, diabetes mellitus, and arthropathy. The diagnosis is significant because untreated acromegaly increases morbidity and mortality due to cardiovascular and metabolic complications.