GPR101 and pituitary tumor: The genetic landscape of pituitary tumors has advanced over the last decade, with the identification of somatic (GNAS, USP8, GPR101) and germline (MEN1, cyclin dependent kinase inhibitor genes, AIP, DICER1, PRKAR1A, PRKACA, SDHx, and GPR101) drivers of pituitary tumorigenesis (55).