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Case Reports in Dentistry
Volume 2019, Article ID 3787696, 6 pages
Case Report

Surgical Management of Extrafollicular Variant of Adenomatoid Odontogenic Tumor in the Maxillary Posterior Region

1Department of Sense Organs, Sapienza University of Rome, Rome, Italy
2Department of Oral and Maxillo-Facial Sciences, Sapienza University of Rome, Rome, Italy
3Department of Radiological, Oncological and Pathological Sciences, Sapienza University of Rome, Rome, Italy
4Department of Biotechnologies and Medical Surgical Sciences, Sapienza University of Rome, Rome, Italy

Correspondence should be addressed to Gerardo La Monaca; ti.1amorinu@acanomal.odrareg and Nicola Pranno; ti.1amorinu@onnarp.alocin

Received 6 November 2018; Accepted 9 January 2019; Published 29 January 2019

Academic Editor: Eugenio Maiorano

Copyright © 2019 Gerardo La Monaca et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Background. Adenomatoid odontogenic tumor (AOT) is a relatively uncommon benign neoplasm of odontogenic epithelial origin, accounting for less than 5% of odontogenic tumors. Case Report. The reported case describes morphological characteristics, clinical course, radiographic and histopathological features, and surgical therapy of an extrafollicular variant of AOT in the maxillary posterior region. An asymptomatic swelling on the left side in the posterior region of the maxilla, gradually increased since approximately 12 months, developed in a 16-year-old Caucasian female patient. Radiographic images revealed a well-defined, unilocular radiolucency, with some small foci of radiopacity inside, and root resorption of the first and second molars. On the base of the histological examination of the specimen retrieved by incisional biopsy, the diagnosis of AOT was made, and the conservative surgical enucleation of the lesion was performed. Discussion. The present case was reported in agreement with an extensive review, in which it was recommended to discontinue reporting classic follicular cases because their clinicopathological profile was well-known, but to continue reporting well-documented cases of the extrafollicular variant, with indication of the exact position. Conclusion. The present case was reported in order to expand the knowledge about the clinical behavior and surgical treatment of the extrafollicular variant of AOT.