CD8A and neoplasm: The correlation analyses of 22 immune cells with the tumor differentiation grade, local invasion degree, lymph node metastasis, and distant metastasis showed that high proportions of macrophage M1, dendritic cells, and CD8 T cells predicted poor tumor differentiation (Figure 4(b), P = 0.021; Figure 4(c), P = 0.001; and Figure 4(d), P = 0.004), high macrophage M1 infiltration indicated advanced tumor invasion (Figure 4(e), P = 0.005), and macrophage M2 tended to be positively correlated with severe tumor invasion, but P = 0.089 (Figure 4(f)).