Journal of Oral Health and Community Dentistry

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VOLUME 16 , ISSUE 2 ( May-August, 2022 ) > List of Articles

CASE REPORT

Orthokeratinized Odontogenic Cyst in Posterior Maxilla: A Rare Diagnosis

Niyati Mishra, Sumit Bhatt, Himanshu Pratap Singh

Keywords : Maxillary, Odontogenic keratocyst

Citation Information : Mishra N, Bhatt S, Singh HP. Orthokeratinized Odontogenic Cyst in Posterior Maxilla: A Rare Diagnosis. J Oral Health Comm Dent 2022; 16 (2):106-109.

DOI: 10.5005/jp-journals-10062-0066A

License: CC BY-NC 4.0

Published Online: 12-09-2022

Copyright Statement:  Copyright © 2022; The Author(s).


Abstract

Aim: Aim of this case report is to discuss and identify a rare diagnosis yet seen commonly in oral and maxillofacial field and often misdiagnosed as odontogenic keratocyst (OKC). Background: The term “odontogenic keratocyst” was first described by Philipsen in 1956. This was then modified by World Health Organization (WHO) in 2005 as “odontogenic unicystic” or “multicystic intraosseous tumor” with a distinctive parakeratinized stratified squamous epithelial lining and the propensity for aggressive and infiltrative activity. It has a male predilection and bimodal age distribution. Orthokeratinized OKC makes up to 2.1% of all the cystic lesions of the jaws. Case description: A young female patient aged 18 years reported to our department with the chief complaint of pus like discharge from upper left back tooth region for the past 2 months. After all the clinical, radiological, and histopathological findings, the patient was then diagnosed with orthokeratinized odontogenic cyst (OOC) of posterior maxilla. Conclusion: Orthokeratinized odontogenic cyst has clinical, histological, and biological characteristics that distinguish it from OKC, including better prognosis and decreased recurrence rate. Clinical significance: It is important to distinguish between OKC and OOC as the latter shows less chances of recurrence and less scope for malignancy transformation.


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