Concomitant occurrence of multiple myeloma with diffuse large B-cell lymphoma.

Editor, Diffuse large B-cell lymphoma (DLBCL) is the most prevalent subtype of non-Hodgkin lymphoma (NHL), with a diverse pathobiology while multiple myeloma (MM), a neoplastic disease involving the clonal proliferation of terminally differentiated plasma cells, is the second most common hematologic neoplasm.[1] The simultaneous presentation of these neoplasms is exceedingly rare, and we present such a case of synchronous DLBCL and MM in a male patient.[2]