In this study, we assessed the relationship between the riskScore and immune cell infiltration and found a milieu favorable for tumor immune escape, like the increased infiltration of CD8+ T cells, M0/M1 macrophages, resting NK cells, and activated memory CD4+ T cells and inhibited resting memory CD4+ T cell, resting dendritic cell, resting mast cell, and monocyte infiltration with increasing riskScore. The gene discussed is CD8A; the disease is neoplasm.