Extramedullary plasmacytoma of external auditory canal: A case report

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Nicolás Orellana V.
Daniel Moyano M.
Carlo Lozano B.
Cristian Papuzinski A.

Keywords

extramedullary plasmacytoma, solitary plasmacytoma, multiple myeloma, ear neoplasm

Abstract

Extramedullary plasmacytoma is a rare plasma cell neoplasm, affecting 80% to 90% of the head or neck. This neoplasm represents less than 1% of all malignant head and neck pathology. Given the infrequency of the pathology and the scarcity of published cases, this entity presents great clinical and therapeutic difficulty. Diagnosis is based on histology and immunohistochemistry and treatment varies depending on the location, where radiation therapy or surgery can be performed. In this article, we present the case of a 56-year-old patient with a history of long-standing otorrhea in the right ear. Phy- sical examination presented a tumor that obstructed the entire external auditory canal. Tumor excision was performed, and the biopsy revealed a plasmacytoma.

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