PLPP2 was higher in many cancers like adrenocortical carcinoma (ACC), cholangiocarcinoma (CHOL), colon adenocarcinoma (COAD), pancreatic adenocarcinoma (PAAD), and so on, while the level of PLPP2 was lower in kidney chromophobe (KICH), pheochromocytoma and paraganglioma (PCPG), skin cutaneous melanoma (SKCM), and so on. This evidence concerns the gene PLPP2 and cholangiocarcinoma.