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J Oral Maxillofac Pathol. 2012 Sep;16(3):454-9. doi: 10.4103/0973-029X.102520.

Clear cell calcifying epithelial odontogenic (Pindborg) tumor involving the maxillary sinus: A case report and review of literature.

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Department of Oral and Maxillofacial Pathology, Vyas Dental College and Hospital, Jodhpur, Rajasthan, India.


Calcifying epithelial odontogenic tumor (CEOT) is a rare benign odontogenic neoplasm of the jaws, accounting for less than 3% of all odontogenic tumors. It rarely extends into the maxillary sinus. Till date, six cases involving maxillary sinus have been reported. In this paper, we report the seventh case of a 52-year-old male with CEOT in maxilla extending from distal surface of the right maxillary canine to retromolar area and involving maxillary sinus with no association with impacted teeth. The diagnosis was confirmed by aspiration cytology and histologically, the tumor was composed of sheets of epithelial cells, with areas of clear cell changes. The presence of clear cells in the histological sections, accounts for the aggressive nature of the tumor simulating the clinical appearance. Prevention of recurrence can be achieved by radical resection.


Calcifying epithelial odontogenic tumor; clear cells; fine needle aspiration cytology; impacted tooth; maxillary sinus

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