European Journal of Medical and Health Sciences 2024-05-15T10:34:50-04:00 Editor-in-Chief Open Journal Systems European Journal of Medical and Health Sciences Multiple Myeloma Revealed by a Plasmacytoma of the Sphenoid Sinus in a Young Subject: Case Report 2024-05-15T10:34:50-04:00 Wafaa Bennane Hanaa Bencharef Bouchra Oukkache <p>Extramedullary plasmacytomas are a rare entity. They represent less than 1% of malignant head and neck tumors. We report the case of a 42-year-old patient complaining of headache, ptosis of the right eye and hypoesthesia of the face evolving for a few weeks. MRI showed a mass in the sphenoid sinus with local extension. The myelogram objectified the presence of 60% dystrophic plasma cells, which confirms the diagnosis of multiple myeloma. The patient received chemotherapy with a good course. Here, we report a rare case of sphenoidal sinus plasmacytoma that evolved into multiple myeloma.</p> 2024-05-13T00:00:00-04:00 Copyright (c) 2024 Wafaa Bennane, Hanaa Bencharef, Bouchra Oukkache