CD274 and neoplasm: The mean percentage of PD-L1 positive tumour cells (TPS) was 5.4% (median: 0%, range: 0–40%), the mean percentage of PD-L1 expression on tumour-infiltrating immune cells per tumour area (IC-Score) was 8.3% (median: 4.5%, range: 0–40%) and the mean CPS was 17.5 (median: 6.5, range: 0–80).