The genes are: GPC3, LCN2, SPP1, UBE2C, PTTG1, SFN, MDK, UBE2T, CCNB1, AKR1B10, NDUFA4L2, NT5DC2, PLVAP, G6PD, PDZK1IP1, CENPW, SPARCL1, SPINK1, UBD, THY1, PTP4A3, TK1, TACC3, GMNN, and STMN1. Expression patterns of all 25 genes in TCGA liver cancer patients along with tumor type and the diagnosis age of patients are shown in (Figure 2) [32,33]. The gene discussed is TK1; the disease is neoplasm.