Endocrine System Diseases [Disease/Finding] Hypothalamic Diseases [Disease/Finding] Pituitary Diseases [Disease/Finding] 399244003 C0032002 Hypophyseal Disorders 1023299 D010900 N0000002407 Pituitary Diseases Disorders involving either the ADENOHYPOPHYSIS or the NEUROHYPOPHYSIS. These diseases usually manifest as hypersecretion or hyposecretion of PITUITARY HORMONES. Neoplastic pituitary masses can also cause compression of the OPTIC CHIASM and other adjacent structures. M0016908 Pituitary Disorders C4992 Pituitary Gland Diseases Pituitary Diseases