Sino-nasal and pharyngeal mass- Immunohistochemistry cuts the gordian knot

Abstract

Sinonasal and pharyngeal mass lesion of Extraskeletal Ewing sarcomas (EEWSs) are extremely rare. Herein we present a case of EEWSs of ethmoid sinus extending into nasal and pharyngeal spaces mimicking as angiofibroma clinically. Histopathological examination in conjunction with immunohistochemistry puzzled out the diagnostic dilemma.