Moreover, no germline or somatic gene mutations were found in genes that have been reported in PCC, such as NF1, RET, VHL, SDHx, TMEM127, MAX, HIF2A, PHD1/PHD2, FH, KIF1B, DNMT3A, IDH1, or SLC25A11 (32). Here, RET is linked to adrenal gland pheochromocytoma.