Ameloblastic fibro-odontoma in a 14 year old girl

Abstract

Ameloblastic fibro-odontoma (AFO) is a benign, epithelial odontogenic tumor with odontogenic mesenchyme having the histologic characteristics of both ameloblastic fibroma and complex odontoma. This report describes the case of a 14-year-old girl with AFO on the right posterior mandibular region that mimics complex odontoma on incisional biopsy due to the presence of atypical dentin- and cementum-like areas. On histological examination, sections of excisional biopsy showed odontogenic epithelial islands with embryonic connective tissue and decalcified sections showed atypical dentin with dentinal tubules and islands of cementum. These features led to the diagnosis of AFO.