Peripheral calcifying odontogenic cyst presenting clinically as an eruption cyst: A case report

Calcifying odontogenic cyst (COC) is an odontogenic cyst with accumulation of ghost cells that has central and peripheral subsets. Here, we present an 11-year-old male patient with an intraoral swelling on the left posterior mandibular ridge interfering with eruption of the second molar. Histopathologic examination revealed a cystic lesion lined by ameloblast-like epithelium in the basal layer and accumulating ghost cells in the upper layers. The final diagnosis was peripheral COC, and there was no recurrence after 6 months. This case has shown that histologic examination is required for every simple case.