CD274 and hematologic disorder: Both immunotherapy, via programmed cell death 1 (PD-1) receptor, programmed cell death ligand 1 (PD-L1) or cytotoxic T-lymphocyte antigen-4 (CTLA-4) inhibitors, and chimeric antigen receptor (CAR) T-cells have impacted the natural history of both solid and hematological malignancies (HM).