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 Posterior Pituitary–Hypothalamic Hormones Vasopressin Oxytocin Acromegaly Aetiology of Acromegaly Histopathology of Acromegaly Associated Pituitary Tumours Aetiology of Acromegaly-Associated Pituitary Tumours Ectopic GHRH and Acromegaly Diagnosis of Acromegaly Growth Hormone Secretion in Acromegaly Clinical Features of Acromegaly Clinical Effects of Growth Hormone Oversecretion Clinical Effects of Pituitary Tumours in Acromegaly Treatment of Acromegaly Surgical Treatment of Acromegaly Radiotherapy in Acromegaly Medical Therapy in Acromegaly Hyperprolactinaemia Normal Physiology of Prolactin Secretion Causes of Hyperprolactinaemia Clinical Features of Hyperprolactinaemia Investigation of Hyperprolactinaemia Treatment of Hyperprolactinaemia Hypopituitarism Causes of Hypopituitarism Pituitary Tumours Parapituitary Tumours Clinical Features of Hypopituitarism Features of Anterior Pituitary Hormone Deficiency Local Effects of Hypothalamic or Pituitary Lesions Anatomical Investigation of Hypopituitarism Endocrine Investgation of Hypopituitarism Treatment of Hypopituitarism Growth Hormone Deficiency In Adults Polyuria and Polydipsia Primary Polydipsia Nephrogenic Diabetes Insipidus Cranial Diabetes Insipidus Investigation of Polyuria Treatment of Cranial Diabetes Insipidus The Syndrome of Inappropriate Antidiuresis Imaging in Hypothalamo–Pituitary Disease