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Calcifying odontogenic cyst. Report of two cases.

Author(s): Sivapathasundharam B | Rafiudeen S

Journal: Indian Journal of Dental Research
ISSN 0970-9290

Volume: 12;
Issue: 1;
Start page: 41;
Date: 2001;

Keywords: Adult | Female | Humans | Male | Mandibular Neoplasms | classification | pathology | Maxillary Neoplasms | classification | pathology | Odontogenic Cyst | Calcifying

Calcifying odontogenic cyst(COC) is an uncommon developmental odontogenic cyst and was first described by Gorlin in 1962. It is considered as extremely rare and accounts for only 1% of the jaw cysts reported. Here, we present two cases of which one occurred in a 32 year old female with a swelling in the lower anterior region crossing the midline and another in a 29 year old male with a swelling in the upper anterior region without crossing the midline. The radiograph revealed a well circumscribed radiolucency in the first case and with some specks of opacities in the second case. It was not associated with any missing or impacted tooth. Histopathological examination was done with Hematoxylin and Eosin and in addition it was studied immunohistochemically for cytokeratin. The Classical histological features of lining epithelium in the form of cords, presence of ghost cells and some amount of dentinoid tissue were seen. The nature of COC is controversial. Here we have discussed the controversies regarding COC as well as the various proposed classifications for this lesion. Based on the histopathological findings, the diagnosis was confirmed as calcifying odontogenic cyst. These cases are presented here for its rarity.
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