Panjwani et al. measured the expression of PD‐L1 protein using IHC and observed that PD‐L1 staining was detected in 53% of primary mediastinal large B‐cell lymphomas, 39% of extranodal NK/T‐cell lymphomas, and 10% of DLBCL,40 which was consistent with our study. This evidence concerns the gene CD274 and diffuse large B-cell lymphoma.