translation.en: So the most common form of giantism is a condition called acromegaly, and acromegaly is caused by a benign tumor on your pituitary gland that causes an overproduction of human growth hormone.
translation.zh: 巨人症最常见的症状 叫做肢端肥大症 肢端肥大症是由位于脑下垂体 的良性肿瘤 过多分泌人类生长激素而导致的