CD274 and neoplasm: These extra scoring systems are: (1) immune cell score (IC), which only takes into account immune cells and is expressed as a percentage of the tissue area occupied by PD‐L1 positive immune cells to the total tissue area; and (2) tumor cell score (TC), which is a percentage of the PD‐L1‐positive tumor cells to the total number of tumor cells, similar to the TPS (Cohen et al., 2019; Crosta et al., 2021; Paolino et al., 2021).