The percentage of CD8+ T cells in the ICC group was significantly lower than that in the BLD group (ICC: BLD = 22.7% vs. 27.4%, p = 0.003), and there were also significant differences in the percentages of CD4+ and CD8+ T cells between the ICC and HCC patients (Figure 1E). The gene discussed is CD4; the disease is intrahepatic cholangiocarcinoma.