Incidental Finding of Ethmoidal Osteoma on Cone Beam Computed Tomography

Osteomas are slow- growing, benign bony tumours that occasionally occur in the paranasal sinuses. They consist of mature compact or cancellous bone. The aim of this report is to describe a case of incidental finding of this tumour in the ethmoidal sinus in a patient presenting with symptomatic florid cementoosseous dysplasia of the mandible diagnosed radiographically. The importance of comprehensive evaluation of large field of view cone beam computed tomography (CBCT) scans is highlighted.