An interesting Case of Sinonasal Ossifying Fibroma

Ossifying fibroma was first decribed by Menzel in 1872. It is a destructive, deforming ,slow growing benign fibro-osseous tumour that can occur anywhere in the facial skeleton. This uncommon tumour can present a diagnostic dilemma for the clinician and pathologist ,owing to overlapping clinical and histomorphologic features. We report a case of sinonasal ossifying fibroma involving both the nasal cavities, the ethmoids and the right maxillary sinus in a 71 year old male patient. We did a Lateral Rhinotomy and excision of the mass and histopathological examination confirmed the diagnosis of ossifying fibroma. Involvement of ethmoid sinus is rare in this condition with only 48 cases reported in literature till june 2011.