Case report- ameloblastoma arising from dentigerous cyst

The lining or sheath of odontogenic cyst may show transformations into malignancies like squamous cell carcinoma or odontogenic carcinomas like ameloblastomas and adenomatoid odontogenic tumor. The disposition for neoplastic epiothelial proliferation in the form of an ameloblastoma is far more pronounced in the dentigerous cyst. We are reporting a case of an ameloblastoma which arose in the wall of a dentigerous cyst. The aim of this paper is to highlight the fact that lesions which appear as dentigerous cyst may have component of ameloblastic changes in the lining.