Journal of AdvancedMedical and Dental Sciences Research

Calcifying odontogenic cyst or Gorlin cyst, was first described by Gorlin. It is an unusual and unique lesion, which may show characteristics of both a solid neoplasm and a cyst.This lesion occurs intraosseously as well as extraosseously, with about equal frequency in the mandible and maxilla (1:1). It has also been said that both the “calcifying odontogenic cyst” and the calcifying epithelial odontogenic tumor share a process of epithelial proliferation with subsequent calcification of some portions. Histologically calcifying cystic odontogenic cyst consists of ameloblastoma -like odontogenic epithelium with reverse polarization and calcifying ghost cells overlying a mature connective tissue with odontogenic rest. In this case report a middle aged patients lesion in the mandible is been discussed. Key words: Calcifying epithelial odontogenic tumor, calcifying epithelial odontogenic cyst, ghost cells, Gorlin cyst.