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Case Reports in Dentistry
Volume 2013 (2013), Article ID 672383, 4 pages
Case Report

Orthokeratinized Odontogenic Cyst: A Report of Three Clinical Cases

1Oral and Maxillofacial Pathology Unit, Dental Clinic Service, Stomatology II Department, UFI 11/25, University of the Basque Country (EHU/EHU), Vizcaya, 48940 Leioa, Spain
2University of Santiago of Compostela, 15782 Santiago of Compostela, Spain
3Private Practice, Eduardo Anitua Institute, 01005 Vitoria-Gasteiz, Spain

Received 16 July 2013; Accepted 5 September 2013

Academic Editors: A. Epivatianos, A. Markopoulos, and G. Sammartino

Copyright © 2013 María del Carmen González Galván et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


The orthokeratinized odontogenic cyst (OOC) is a rare developmental odontogenic cyst that has been considered as a variant of the keratocystic odontogenic tumour (KCOT) until Wright (1981) defined it as a different entity. Surgery is the usual treatment, and recurrence or association with Gorlin-Goltz syndrome has rarely been described. In this report, we presented three cases of this pathology, and we review the principal clinical, histological, radiological, and therapeutic aspects. Case 1. A 73-year-old female presents with a slight swelling on the right mandible, associated with an unilocular well-defined radiolucent lesion. Case 2. A 27-year-old female presents with a painful mandibular swelling associated with an unilocular radiolucent lesion posterior to the 4.8. Case 3. A 61-year-old male was casually detected presents with an unilocular radiolucent lesion distal to the 4.8. Conclusion. The OOC is a specific odontogenic clinicopathological entity that should be differentiated from the KCOT as it presents a completely different biological behaviour.