Low Infiltration of Peritumoral Regulatory T Cells Predicts Worse Outcome Following Resection of Colorectal Liver Metastases

Background The tumor-infiltrating lymphocyte (TIL) count in several types of cancer, including colorectal cancer and colorectal liver metastases (CRLM), reportedly predicts survival following resection; however, the prognostic significance of the TIL counts remains controversial.