Extramedullary Plasmacytoma of Soft Tissue Neck

Abstract

Plasmacytoma is an extremely rare and discrete solitary mass of neoplastic monoclonal plasma cells. Extramedullary plasmacytoma tends to occur during the fifth and seventh decades of life and is rarely diagnosed in younger patients. In this study, a 55-year-old patient presented to us with complaint of changes in voice, and difficulty in swallowing and breathing. On examination, there was a retropharyngeal mass which is extending to lateral pharyngeal wall and toward nasopharynx. Contrast computed tomography scan shows soft tissue density involving retropharyngeal space and involving nasopharynx and left parapharyngeal space. For this, the patient underwent excision of this mass under General Anaesthesia (GA) biopsy report was suggestive of plasmacytoma. After excluding systemic involvement by means of laboratorial and radiological investigations, the patient was referred to radiotherapy department for complete management.