CD8A and melanoma: Characteristics of malignant melanoma patients related to the immune landscape, including the clinicopathological characteristics of RAIPM subgroups, are shown in Figure 8A. We found that macrophages M0 and M2 and resting mast cells were more abundant in the subgroup with higher risk, while plasma cells, activated memory CD4+ T cells, CD8+ T cells, Tregs, activated NK cells, monocytes, and M1 macrophages were more abundant in the subgroup with lower risk (Figure 8B).