A rare case of Epstein-Barr virus-related plasmacytoma involving maxillary sinus mucosa.

Extramedullary plasmacytomas, Epstein-Bar virus (EBV) associated, are rarely encountered and usually have a fairly good clinical outcome. EBV+ plasmacytoma may cause a diagnostic dilemma as it phenotypically resembles an aggressive plasmablastic lymphoma (PBL). Herein, we report a unique case with maxillary EBV+ plasmacytoma from a 76-year-old immunocompetent individual.