Peripheral osteoma in an unusual location on the mandible

Osteoma is a benign, slow-growing, painless, discrete lesion which is characterised with the proliferation of a compact or cancellous bone. Osteomas are rare on the jaws. Lesions of the mandible developed most often in the condyle, angle and margin. Osteoma developed on the genial tubercle area had only been reported in one case. A 50-year-old female patient has been admitted to our department with the symptom of a hard mass under the chin area. In extra-oral and radiographic examinations, a 1×1 cm size, round, palpable, immobile, radiopaque mass has been determined on the genial tubercle area. The lesion has been completely removed under local anaesthesia by extra-oral approach. Her recovery period was uneventful. Osteoma diagnosis was confirmed with histopathological examination. There is no recurrence at 3-year follow-up. The purpose of this case report is to present a peripheral osteoma case that occurred in the genial tubercle area which is an unusual place.