Fig. 2From: Osteosarcoma of the sphenoid sinus extending to ethmoid sinus—report of a rare case with review of literature giving special emphasis on treatment and outcomeIntraoperative imaging showing the cystic lesion occupying nasal cavity (a). Postoperative CT showing near total excision (b). IT—inferior turbinate, MT—middle turbinate, S—nasal septum. Yellow arrow represents the tumourBack to article page