抄録
We report a case of complex odontoma with non-typical radiographic features, which was located inside the right posterior sinus wall. An 8-year-old boy was referred to our clinic for evaluation of the right sinus. Panoramic radiography showed a cystic lesion-like egg shape on the posterior sinus wall. Computed tomography clearly showed a low-density gourd-shaped mass covered with a high-density shell. The mass was diagnosed to be a maxillary tumor and was removed surgically. The histopathological diagnosis was complex odontoma. We performed a procedure considering maxillary bone growth. The postoperative course has been uneventful with no recurrence. We are conducting follow-up observations for maxillary bone growth.