Krishna P. S, Shankar K. A, Balachander N. Orthokeratinized Odontogenic Cyst of the Mandible – Case Report with Unusual Histopathologic Features with Review. Biomed Pharmacol J 2015;8(October Spl Edition)

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Manuscript accepted on :
Published online on: 20-01-2016

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P. Sai Krishna¹, K. A Shankar¹, N. Balachander²

¹Tagore dental college and Hospital, Chennai, Tamilnadu, India. ²Sree Balaji Dental College  Hospital, Bharath University, Chennai.

DOI : https://dx.doi.org/10.13005/bpj/662

Abstract

Orthokeratinized odontogenic cysts(OOC’s) are relatively uncommon developmental cysts lined with orthokeratinized epithelium consisting of prominent granular layer and a basal layer of low cuboidal flattened cells that show no tendency for nuclear palisading. OOC’s has been considered a distinct entity from odontogenic keratocyst since they exhibit a less aggressive behavior and a very low recurrence rate. This report describes a 27 year old female patient who presented with a cyst with unique histopathological features. The purpose of this article is to present a case of OOC in the posterior mandible and also emphasize on the need for differentiating it from keratocystic odontogenic tumor(KCOT) with a comprehensive literature review.

Keywords

odontogenic cyst; orthokeratinizedodontogenic cyst; keratocysticodontogenic tumor