Of the 358 genes, a total of 15 genes (SOX2, KIT, PRSS56, WNT9A, SLC4A4, PRRG4, PANX2, PIR, RASSF8, MFSD4A, INS, RNF39, IL1R2, CST1, and PPP3CA) demonstrated significant association with the prognosis of CCA (Table 3). Here, PANX2 is linked to cholangiocarcinoma.