label: Plasmablastic Lymphoma
label_lc: plasmablastic lymphoma
description: "An aggressive diffuse large B-cell lymphoma frequently arising in the setting of HIV infection and characterized by the presence of large neoplastic cells resembling B-immunoblasts which have the immunophenotypic profile of plasma cells.  Sites of involvement include the oral cavity, sinonasal cavity, skin, soft tissues, gastrointestinal tract, and bone."