is a condition characterized by excessive growth and height significantly above average. In humans, this condition is caused by over-production of growth hormone in childhood resulting in persons between 2.13 m (7 feet or 84 inches) and 2.74 m (9 feet or 108 inches) in height.
Gigantism is usually caused by a tumor on the pituitary gland of the brain. It causes growth of the hands, face, and feet. In some cases the condition can be passed on genetically through a mutated gene.
The child will grow in height, as well as in the muscles and organs. This excessive growth makes the child extremely large for his or her age.