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J Craniomaxillofac Surg. 2012 Dec;40(8):812-4. doi: 10.1016/j.jcms.2012.02.023. Epub 2012 Apr 8.

Epidermal choristoma arising on the midline gingiva as a congenital epulis: a case report.

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1
Division of Oral and Maxillofacial Surgery, Department of Sensory and Motor Organs, Faculty of Medicine, Miyazaki University, Kihara 5200, Kiyotake, Miyazaki, Japan. yizumi@fc.miyazaki-u.ac.jp

Abstract

We report an extremely rare case of epidermal choristoma in the midline of the maxillary gingiva. A 2-month-old Japanese boy presented with a polypoid mass in the midline of the maxillary gingiva. The initial clinical diagnosis was congenital epulis. Microscopic examination revealed a granular cell layer and melanin pigmentation within the basal cell layer. Furthermore, sebaceous glands and hair follicles were observed within the connective tissue. The histological diagnosis was therefore epidermal choristoma, based on clinical microscopic observations.

PMID:
22487269
DOI:
10.1016/j.jcms.2012.02.023
[Indexed for MEDLINE]
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