<unk>  is the result of excess secretion of adenohypophyseal trophic hormones most commonly by a functional pituitary adenoma. Other causes are hyperplasias and carcinomas of the adenohypophysis, secretion by non-pituitary tumours and certain hypothalamic disorders.
Hyperpituitarism
Hyperprolactinemia
Hypopituitarism
Constitutional delay of puberty
Hypogonadotrophic hypogonadism
Hyperandrogenism
Hyerthyroidism
Acromegaly