Primary Extraskeletal Ewing's Sarcoma of Nasal Cavity

Abstract

Extra skeletal Ewing's Sarcoma (EES) of nasal cavity is a rare soft tissue tumor, morphologically similar to the commoner Ewing's sarcoma (ES) arising from bone. We report a case of EES of nasal cavity in a nine year old male who presented with nasal obstruction. Contrast enhanced CT scan showed mildly enhancing soft tissue attenuating mass. Histopathologically examination showed round cell tumor which was confirmed by special stain and immunohistochemistry. PAS showed positivity for intracellular glycogen, Immunohistochemistry showed positivity for MIC-2,CK,S-100,EMA.