Extraosseous calcifying odontogenic cyst: report of case and review of literature.

A case report of an extraosseous calcifying odontogenic cyst (COC) that appeared clinically to be a reactive lesion is presented. Review of the 28 previously published extraosseous COC cases and the current case report showed a mean age of 45.2 years at the time of diagnosis. No predilection for either gender or the maxilla or mandible was ascertained. A majority (51.9%) of cases occurred between the canines and none was posterior to the first molar. Because recurrences of an extraosseous COC have not been reported, the recommended treatment for an extraosseous COC is conservative surgical excision.