Osteoblastoma of the maxilla and mandible: a report of 2 cases and literature review.

The Chinese Journal of Dental Research ly. The initial presentation or detailed surgical information was inadequate. Physical examination revealed an edentulous region from tooth 23 to 27, which was accompanied by a hard mass. Tenderness to palpation was noted. Radiographs showed that teeth 23 to 27 and the alveolar process were missing. A radiopaque mass was noted with an irregular border and an ill-defined margin, measuring 4 × 3 cm. Computerised tomography (CT) scans revealed an uneven, hyperdense, calcified mass in the left half of the maxillary alveolar bone and hard palate. A diagnosis of recurrence of osteoblastoma was established. The lesion was excised and submitted for histopathologic evaluation. The lesion was composed mostly of solid osteoid and granulation tissue, and was not enveloped and could not be separated from the surrounding normal bone tissue. The final histologic report confirmed the diagnosis of osteoblastoma. The patient had an uneventful postoperative course and there was no recurrence within the 1-year follow-up.