A Case of Extramedullary Plasmacytoma in Both Maxillary Sinuses

Author: Myeonggu SEO ¹ ; Ji-Hwan PARK ; Sung-Dong KIM ; Kyung Un CHOI ; Kyu-Sup CHO
Author Information

1. Department of Otorhinolaryngology and Biomedical Research Institute, Pusan National University School of Medicine, Pusan National University Hospital, Busan, Republic of Korea
Publication Type:Case Report
From:Journal of Rhinology 2023;30(3):173-176
CountryRepublic of Korea
Language:English
Abstract: Plasmacytoma is a rare hematolymphoid malignancy. The three types of plasmacytoma, according to clinical features and morphological characteristics, include solitary bone plasmacytoma, extramedullary plasmacytoma (EMP), and multiple myeloma (MM). Although EMP of the head and neck region accounts for approximately 3% of all plasma cell tumors, the involvement of both paranasal sinuses is extremely rare. Herein, we describe a rare case of EMP involving both maxillary sinuses in a 73-year-old male patient who had achieved complete remission from MM following chemotherapy 2 years ago. The EMP was treated successfully with radiotherapy.