PIK3CA and hepatocellular carcinoma: We select top5 mutated genes according to TCGA-LIHC (TP53, TTN, CTNNB1, MUC16, and ALB) together with 10 genes impacting common pathways in HCC (AXIN1, APC, IRF2, CDKN2A, ARID1A, ARID2, KRAS, PIK3CA, RPS6KA3, NFE2L2) [48].