2014 年 60 巻 2 号 p. 61-65
Calcifying epithelial odontogenic tumor (CEOT) is a rare odontogenic tumor derived from odontogenic epithelium. We describe a 35-year-old man with CEOT in the left mandibular molar region. Panoramic radiography of the left side of the mandible showed a multilocular radiolucent lesion with several radiopaque masses. Computed tomography indicated expansion and thinning of the buccal and lingual cortical bone adjacent to the multilocular lesion in the left side of the mandible. The preoperative histopathological diagnosis on examination of a biopsy specimen was CEOT, which was considered to be derived from the odontogenic epithelium. The patient did not come to our hospital for 2 years, but then returned because the CEOT had enlarged.
With the patient under general anesthesia, we performed continuous resection of the mandible and reconstruction with a plate. The postoperative course was uneventful during a follow-up period of 2 years, and there has been no recurrence.