ACTH-Secreting Pituitary AdenomaAdenomaPituitary ACTH HypersecretionPituitary NeoplasmsAdrenocorticotropic HormoneAdenoma, ChromophobeThyrotrophsNADH Tetrazolium ReductaseCorticotrophsPro-OpiomelanocortinPituitary GlandImmunohistochemistryProprotein Convertase 1Pituitary Gland, AnteriorCorticotropin-Releasing HormoneCushing SyndromeAdenoma, PleomorphicNelson SyndromeAdenoma, VillousLypressinACTH Syndrome, EctopicHydrocortisoneAdrenocortical AdenomaGalectin 3Receptors, SomatostatinAdenoma, Liver CellCorticosteroneReceptors, VasopressinPituitary-Adrenal SystemDog DiseasesGlucocorticoids