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Case Reports in Pathology
Volume 2017, Article ID 7031414, 6 pages
https://doi.org/10.1155/2017/7031414
Case Report

Hybrid Desmoplastic/Follicular Ameloblastoma of the Mandible: A Case Report and Review of the Literature

1Department of Dentistry and Oral Surgery, Hakujikai Memorial General Hospital, Tokyo, Japan
2Department of Oral and Maxillofacial Surgery, School of Dental Medicine, Tsurumi University, Kanagawa, Japan
3Department of Dentistry and Oral Surgery, Jinkokai Hospital, Kanagawa, Japan

Correspondence should be addressed to Masayasu Iwase; pj.ca.u-awohs.tned@esawi

Received 30 January 2017; Accepted 24 April 2017; Published 11 May 2017

Academic Editor: Prashant Bavi

Copyright © 2017 Masayasu Iwase 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.

Abstract

Desmoplastic ameloblastoma (DA) is one of the 6 histopathological subtypes of ameloblastoma. Hybrid lesions in which histopathologically conventional ameloblastoma coexists with areas of DA are rare. A 40-year-old male was referred to our hospital complaining of a swelling in the right premolar region of the mandible. A panoramic radiograph showed an area of radiolucency with a well-defined corticated border, whereas computed tomography revealed a unilocular radiolucent lesion and buccal expansion together with cortical perforation. The lesion was treated via enucleation and curettage of the marginal bone and fenestration. A histopathological examination showed a hybrid ameloblastoma with a pronounced desmoplastic pattern and follicular changes. The patient’s postoperative course has been favorable up to now, and no marked changes have been observed. We presented a case of hybrid ameloblastoma and reviewed the 36 reported cases of hybrid ameloblastoma that have been reported in the English literature.