CD274 and neoplasm: However, several other studies have revealed inconsistent results regarding the association between tumor PD‐L1 positivity and prognosis in cases of UC.8, 9, 10, 11, 12, 13, 14, 15, 16, 17 Therefore, it is important to improve our understanding of the prognostic significance of PD‐L1 expression in UC, in order to better select patients who are likely to respond to PD‐1/PD‐L1 blockade.