Masahisa Nomura

Mandibular adenomatoid odontogenic tumor with unusual clinicopathologic features

Abstract Adenomatoid odontogenic tumor (AOT) is a relatively uncommon odontogenic tumor characterized by the formation of ductlike structures by the epithelial component of the lesion. 1 According to the reports of Giansanti et al, 2 Toida et al, 3 and Philipsen et al, 4 cases occur predominantly in the second and third decades of life, with few cases occurring in people over 50 years old. The usual site is the anterior maxillary region. The most common radiographic appearance of AOT is a sharply circumscribed, unilocular radiolucency, often associated with the crown of an unerupted anterior maxillary tooth (especially canine), resembling a dentigerous cyst. Detectable radiopacities were reported in two thirds of the cases. 4 The AOT reported here showed unusual clinicopathologic features.

A new method of conserving the inferior alveolar nerve during resection of the mandible

A method is presented of conserving the inferior alveolar nerve where resection of the mandible is necessary. The technique features the delivery of the nerve through the mandibular foramen and the end-to-end anastomosis of the previously sectioned nerve. The technique is particularly indicated in the treatment of carefully chosen cases of benign and locally invasive neoplasms and cysts with complex cavities.