As a most recent study found that the gene expression profile of DLBCL with 9p24 amplification was similar to those of PMBCL48, we compared the 15 PMBCL cases with 15 DLBCL–NOS cases with PD-L1/PD-L2 amplifications (almost exclusively ABC-subtype)46. The gene discussed is CD274; the disease is diffuse large B-cell lymphoma.