Cox's Proportional Hazards multivariate analysis identified cytoplasmic PD-L1 [p = 0.044; HR: 0, 426 (C.I.: 0.186–0.977)], tumor size [p = 0.002; HR: 7.618 (C.I.: 2.139–27.128)] and gender [p = 0.007; HR: 0.112 [(C.I.: 0.022–0.554)] as independent prognostic markers shown in Table 3. Here, CD274 is linked to neoplasm.