Recurrent squamous odontogenic tumor: A case report and review of the literature

Mohr,Barbara; Winter,Jochen; Wahl,Gerhard; Janska,Emilia

doi:10.3892/ol.2015.3632

Recurrent squamous odontogenic tumor: A case report and review of the literature

Authors:
- Barbara Mohr
- Jochen Winter
- Gerhard Wahl
- Emilia Janska
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Affiliations: Department of Oral Surgery, University Hospital Bonn, Bonn D‑53111, Germany, Oral Cell and Tumor Biology Group, Department of Periodontology, Operative and Preventive Dentistry, University Hospital Bonn, Bonn D‑53111, Germany, Department of Stomatology and Maxillofacial Surgery, Comenius University, Bratislava 81101, Slovak Republic
Published online on: August 25, 2015 https://doi.org/10.3892/ol.2015.3632
Pages: 2713-2722
Copyright: © Mohr et al. This is an open access article distributed under the terms of Creative Commons Attribution License.

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Abstract

Squamous odontogenic tumors (SOTs) are benign, locally infiltrative neoplasms that localize to the periodontium. In total, <50 cases have been reported since the first description of SOTs in 1975. Although the exact etiology of SOTs is unknown, the tumors are considered to derive from the epithelial cell rests of Malassez. SOTs are characterized by radiological and clinical signs and symptoms, including pain with increased sensitivity in the affected area, bone expansion and increased tooth mobility. The present study describes the case of a patient that experienced numerous SOT recurrences and also discusses recommendations for treatment. A locally invasive mandibular SOT was identified in a Caucasian 41‑year‑old female patient. The treatment involved recommended conservative surgery, including local curettage. In addition, 49 cases published in the literature were reviewed to assess the treatment strategies. The present patient experienced two recurrences of the tumor during the 6‑year follow‑up period. Ultimately, the vitality of the adjacent teeth was compromised. An apicoectomy with a small amount of resection of the marginal bone was necessary. In >50% of the reported cases of SOT in the literature the adjacent teeth were extracted. The present case of SOT and the associated literature were also discussed. It was concluded that the treatment of choice appears to be a conservative surgical removal, but the successful management of SOTs often requires the removal of the adjacent teeth.

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