AUTHOR(S): Mahendra Patait, Deepali Nipunge, Amol Thorat, Sameer Narkhede and Shrinivas Amberkar

ABSTRACT:Osteoma is a benign tumour of mature compact or cancellous bone that increases in size by continuous formation of bone. The majority of cases has been documented as osteoma occur in the craniofacial bones most commonly in paranasal sinuses and jaw bones, rarely seen in other bones and in soft tissues such as muscle. Two variants of osteoma are documented which be different in the origin in relation to cortical plates: Peripheral (periosteal) osteomas are masses attached to cortical plates and central osteomas arise from endosteal bone surface. The lesion is found more frequently in the mandible than maxilla and most common sites are lingual aspect of body of mandible and lower border in the region of angle.2Other locations include paranasal sinuses, orbits, temporal bone, external auditory canal and pterygoid process. Peripheral osteoma appears clinically as unilateral, well circumscribed, sessile or pedunculated, mushroom like mass measured about 10 to 40 mm in diameter. There is no predilection for age, sex. In present case, we discuss about the characteristic features and diagnosis of osteoma and differentiate from another bony lesions and treatment modalities of this.

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