pituitary diseasemanagement of pituitary microadenomaposterior pituitary microadenomapituitary microadenoma surgerypituitary microadenoma medicationmicroadenoma pituitary tumormicroadenoma of pituitary glandpituitary hypothyroidismpituitary macroadenoma treatmenthypothalamus pituitarycystic pituitary microadenomapituitary dysfunction