Tumour Lymphocytic Infiltration, Its Structure and Influence in Colorectal Cancer Progression

Abstract

The role of the immune system in the control of tumour progression has been stressed, recently. Many studies indicate the fact that the immune system can prevent tumour progression in several types of human malignant neoplasms including colorectal cancer. According to some authors, a higher density of “tumour-associated lymphocytes” (TAL), in malignant neoplasms, correlate with prolonged survival of patients.