Orthokeratinized Odontogenic Cyst of the Mandible – Case Report with Unusual Histopathologic Features with Review

P. Sai Krishna; K. A Shankar; N. Balachander

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Orthokeratinized Odontogenic Cyst of the Mandible – Case Report with Unusual Histopathologic Features with Review

Volume 8, (october Spl Edition)

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 : http://dx.doi.org/10.13005/bpj/662

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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