Oral Biol Res 2018; 42(3): 163-167  https://doi.org/10.21851/obr.42.03.201809.163
Peripheral odontogenic fibroma: A rare benign gingival tumor and compared with pyogenic granuloma
Jae-Hong Lee*, Seong-Nyum Jeong
Department of Periodontology, Institute of Wonkwang Dental Research, Daejeon Dental Hospital, Wonkwang University School of Dentistry,  Daejeon, Korea
Correspondence to: Jae-Hong Lee, Department of Periodontology, Daejeon Dental Hospital, Wonkwang University School of Dentistry, 77 Dunsan-ro, Seo-gu, Daejeon 35233, Korea.
Tel: +82-42-366-1114, Fax: +82-42-366-1115, E-mail: ljaehong@gmail.com
Received: June 5, 2018; Revised: June 26, 2018; Accepted: June 29, 2018; Published online: September 30, 2018.
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This is an open-access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0) which permits unrestricted noncommercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract
Peripheral odontogenic fibroma (POF, WHO-type) is a relatively rare benign tumor which shows sessile, firm, and exophytic gingival enlargement. Microscopically, a POF is a gingival lesion consisting of scattered and multiple islands of odontogenic epithelial strands and keratinized stratified squamous epithelium with long and thin rete pegs underlying fibrocellular connective tissue. A mature lesion of POF is clinically difficult to distinguish from pyogenic granuloma, due to their similar shapes and colors, and the fact that pyogenic granuloma is a frequently-occurring disease. Therefore, we report a case of POF in a 37-year-old female and compare it with pyogenic granuloma.
Keywords: Gingival overgrowth, Odontogenic tumor, Peripheral odontogenic fibroma, Pyogenic granuloma


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