Abstract

Ameloblastic Fibrodentinoma (AFD) is currently considered as a developing odontoma, and has subsequently been removed from the new WHO classification of odontogenic tumours. However, the presence of dentinoid in AFD, absence of enamel, the potential for continued growth, its exceptionally low recurrence rate, and the occurrence of AFD within the same age group as ameloblastic fibroma (AF) and ameloblastic fibro-odontoma (AFO), suggest a unique mixed odontogenic neoplasm, separate from AF, AFO and developing odontoma. The histologic diagnosis of AFD can be challenging in small/limited biopsy specimens composed of odontogenic ectomesenchyme and lacking odontogenic epithelium. In such cases, it may not be possible to distinguish between AFD, odontogenic myxoma, dental follicle and central odontogenic fibroma (COF) with confidence, and a circumspect report may be necessary. Herein, a rare case of a large AFD of the anterior maxilla in a 5 year old boy will be presented.

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