The term gigantism, or acromegaly, applies to an individual whose size is much greater than average. Gigantism is a disease caused by excessive production of growth hormones, called GH, by the pituitary gland located in the brain. It appears in childhood and many morphological signs lead us to suspect it: enlarged hands and feet, thick skin, a prominent chin (called prognathism), and an abnormal tendency to sweat ... The organs are also increased in size. This disruption of pituitary function is usually caused by a benign tumor of the pituitary, adenoma gonadotropin, which once detected, can sometimes be surgically removed.