Two cases of a solitary peripheral osteoma arising in the mandible

SATO Eiju, HASEGAWA Hiroshi, TSUCHIYA Reo, KANEKO Tetsuharu, TAKEISHI Etsuro, MONMA Tsutomu

doi:10.5794/jjoms.59.765

Peripheral osteoma arising in the mandible is relatively rare. We report two cases of a solitary peripheral osteoma located in the buccal aspect of the mandibular body and subcondylar region. The first patient was a 30 -year-old woman presenting with a peripheral osteoma near the mental foramen of the mandibular body. She had been aware of a swelling on the right side of the mandible since approximately 1998 and visited our hospital in 2001. She refused resection at that time, but the tumor enlarged slowly, and she therefore returned to us in 2009. Enlargement of the neoplasm on a computed tomographic scan was significant as compared with the size at 8 years of age. It was removed surgically via an intraoral approach with the patient under general anesthesia. The second patient was a 68-year-old woman with a peripheral osteoma arising in the subcondylar region. She had noticed swelling of the right buccal region 20 years earlier. Computed tomographic examinations revealed a bony mass located in the right subcondylar region. It was excised with a trans-parotid gland approach, involving a preaural incision under general anesthesia. In both cases, the histopathological diagnosis was a compact osteoma. Both patients were satisfied esthetically and have remained free of recurrence postoperatively at a follw-up of 48 and 56 months, respectively.

Two cases of a solitary peripheral osteoma arising in the mandible

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