Adenomatoid Odontogenic Tumor in Mandible: A Case Report

초록

Adenomatoid odontogenic tumor is a relatively uncommon odontogenic tumor with slow and progressive growth. Most adenomatoid odontogenic tumor occurs in female and anterior maxilla. We experienced a case of adnomatoid odontogenic tumor with a few glandular structures arising in mandible. A 39-year-old woman presented a swelling on right mandibular border. Computed tomography revealed an osteolytic cystic lesion with attachment of root of impacted tooth in right parasymphysis of mandible. Also noted was a central small pebble-like calcification. The cystic lesion measured 1.8 cm. The patient underwent surgical enucleation of the cyst. Microscopically, the cyst had a thick fibrous capsule. The lesion consisted of spindle-shaped epithelial cells showing haphazard and whirling pattern in most area. In central area, numerous dystrophic calcifications were noted with eosinophilic amorphous material reminiscent of enamel matrix. A few gland-like structures lined by cuboidal epithelial cells were found in focal peripheral area. Key Words: Adenoameloblastoma; Odontogenic tumors; Mandible