CD8A and skin basal cell carcinoma: Recent findings suggest an impaired immunosurveillance in BCC that show a reduced major histocompatibility complex I (MHC-I) expression with a low CD4+ and CD8+ T-cell infiltration and an increase in regulatory T-cell (Treg) infiltration with an uprise in interleukins and cytokines that promote immunosuppression (13, 14).