CASE REPORTS   

Italian Journal of Maxillofacial Surgery 2006 April-December;17(1-3):53-61

Copyright © 2006 EDIZIONI MINERVA MEDICA

language: English

Squamous odontogenic tumor: case report and review of literature

Bertolai R. ¹, Agostini T. ², Agostini V. ²

¹ Department of Maxillo-Facial Surgery University of Florence Florence, Italy 2 Department of Plastic and Reconstructive Surgery University of Florence Florence, Italy

Squamous odontogenic tumor (SOT) is a rare benign neoplasm with odontogenic origin, locally aggressive, interesting both the superior and inferior maxillary bone. According to Karmer et al. squamous odontogenic tumor seems to derive from the rests of Malassez in the periodontal ligament space. SOT arises in district without teeth or in the connective tissue of the odontogenic cysts. Almost all the cases described in literature arose in the periodontal space of the permanent teeth and SOT arose into a deciduous tooth only one. Possible misdiagnosis are with ameloblastoma, squamous cell carcinoma and fibroma. Squamous odontogenic tumor was first described in 1975 and following other five cases were identified. Even if it is a benign tumor this neoplasm is locally aggressive, often asymptomatic. Mobility of the teeth adjacent to the tumor is the predominant sign; moderate pain and swelling are reported too. Treatment involves local excision and curetage. Few reported cases of recurrence are described in literature. Once a meticulous review of literature has been performed, a squamous odontogenic tumor arose next to an implant is described.