Iranian Dental Association Journal of Iranian Dental Association 3060-8201 18 2 2006 05 01 Adenoid ameloblastoma with dentinoid (Case Report) 38 43 EN Shila Gasemi Moridani Journal Article 2006 12 23 2013 02 25 Adenoid ameloblastoma with dentinoid (Case Report) Dr. Sh. Gasemi Moridani* *- Assistant Professor of Oral Pathology Dept. - Faculty of Dentistry – Qazvin University of Medical Sciences. Background and Aim: Ameloblastoma is one of the most common odontogenic tumors, occasionally with unusual features. In this study an uncommon odontogenic tumor, histologically similar to ameloblastoma and adenomatoid odontogenic tumor with hard tissue formation is reported. Case Report: A 19-year old female presented with a unilocular lesion on the right side of the maxilla, extending from the canine to the first molar. The tumor tissue was unicystic overall and typical plexiform ameloblastoma was observed in some areas. Dentinoid formation and tubular dentin was observed in the tumor stroma, whereas enamel matrix was not seen. Conclusion: Very few cases of this variant of ameloblastoma have been reported and the name “adenoid ameloblastoma with dentinoid” is suggested for these lesions. Key words: Adenoid Ameloblastoma with Dentinoid, Ameloblastoma, Adenomatoid Odontogenic Tumor, Dentinoid