The Pituitary and Hypothalamus Neurosecretion The Anterior Pituitary Anatomy of the Median Eminence Anterior Pituitary Physiology Prolactin-Regulating Factors Corticotrophin-Releasing Hormone Somatostatin Growth Hormone Releasing Hormone Gonadotrophin-Releasing Hormone Thyrotrophin Releasing Hormone The Posterior Pituitary Acromegaly Hyperprolactinaemia Hypopituitarism Polyuria and Polydipsia The Syndrome of Inappropriate Antidiuresis Imaging in Hypothalamo–Pituitary Disease