In particular, three genes mainly related to mitochondrial function (NIPSNAP1, logFC = 0.55, FDR = 0.024), metabolite transport (SLC16A12, logFC = 0.51, FDR = 0.009) and endothelial function (PLVAP, logFC = 0.75, FDR = 0.024) were lower expressed in PCC patients compared to controls, whereas two genes related to basic cellular processes including DNA packaging (NAP1L4, logFC = −3.43, FDR = 3.19 × 10−9), and tissue repair (RNF122, logFC = −0.503, FDR = 0.024) were higher expressed in PCC patients compared to controls. This evidence concerns the gene RNF122 and adrenal gland pheochromocytoma.