Chondromyxoid fibroma is a rare tumour, representing <1% of all primary bone neoplasm. We report the case of a four-year-old female child with a one-year history of nasal obstruction and facial swelling. A large enhanced lesion with amorphous densities spreading into the right cribriform plate and floor of sphenoid sinus, laterally into the right lamina papyracea, inferolaterally into the medial wall of maxillary sinus, posteriorly into the nasopharynx and superior aspect of oropharynx was observed on CT scan. The mass was excised by Caldwell Luc's endoscopic medial maxillectomy via sublabial approach. CMF was confirmed histopathologically.
Keywords: Chondromyxoid fibroma, Benign neoplasm, Lamina paprycea..