CD8A and neoplasm: In none of the subpopulations measured significant differences were found between cell proportions: Macrophages (F4/80+), Natural killer (NK), T Lymphocytes (CD3+), helper T Lymphocytes (CD4+), cytotoxic T lymphocytes (CD8+), Treg CD4+, Treg CD8+ and B (CD19+) lymphocytes within the tumor analyzed (Figure 3).