CD274 and colorectal carcinoma: Higher PD-L1 expression on both tumor cells (expression level ≥ 2%, tPD-L1high) and within the immune stroma (expression level ≥ 2%, sPD-L1high) was associated with better OS in CRC patients, but only the sPD-L1 reached statistical significance (p = 0.0023, Fig. 3A for sPD-L1; p = 0.3693, Fig. 3B for tPD-L1).