Tumor-Infiltrating Immune Cells Are More Abundant in Lung Metastases From Colorectal Cancer Than in Paired Primary Tumors and Their Prognostic Value Depends on Adjuvant Chemotherapy
INTRODUCTION: The immune microenvironment plays a crucial role in the progression of colorectal cancer (CRC), but its variation across primary tumors and metastatic sites remains incompletely understood. In this study, we compared the composition and prognostic significance of the immune microenvironment in lung metastases, paired primary tumors, and liver metastases from a retrospective cohort of
