Accordingly, they include prolactin-secreting pituitary adenoma (PRLPA), non-secreting pituitary adenoma (NFPA), growth hormone-secreting pituitary adenoma (GHPA), as well as adrenocorticotropic hormone-secreting pituitary adenoma (ACTHPA) and other types of PA. Here, POMC is linked to pituitary gland adenoma.