Table 4 shows that a higher intensity of infiltrating CD8+T cells in ICC tissues (uni-variate: HR = 0.401, 95% CI: 0.190–0.843, P = 0.016) and infiltrating CD103+CD8+T cells in ICC tissues (uni-variate: HR = 0.472, 95% CI: 0.224–0.994, P = 0.050) could predict a better survival of the ICC patients. The gene discussed is CD8A; the disease is intrahepatic cholangiocarcinoma.