CD274 and adult T-cell leukemia/lymphoma: Similar features were found in our study, showing that the coding gene CD274 of PD-L1 was rearranged in 23.81% (5/21) RR ENKTL.CD274 rearrangement has also been reported in adult T-cell leukemia/lymphoma and primary mediastinal large B-cell lymphoma (47, 48).