ACTH-Secreting Pituitary AdenomaNADH Tetrazolium ReductaseAdenoma, ChromophobeAdenomaPituitary NeoplasmsAdrenocorticotropic HormonePituitary ACTH HypersecretionThyrotrophsCorticotrophsPro-OpiomelanocortinPituitary GlandImmunohistochemistryProprotein Convertase 1Pituitary Gland, AnteriorCorticotropin-Releasing HormoneCushing Syndrome