CD274 and neoplasm: These two scores are: (1) tumor proportion score (TPS), which represents the proportion (%) of PD‐L1 positive tumor cells relative to the total number of viable tumor cells × 100; and (2) combined positive score (CPS), which represents the number of all PD‐L1‐positive cells (neoplastic and inflammatory cells) relative to the number of all viable tumor cells × 100 (Paolino et al., 2021).