Odontoameloblastoma (OA) is a rare mixed odontogenic tumor with both ameloblastic (epithelial) and odontoma-like (ectomesenchymal) features. It presents as a unilocular or multilocular radiolucent to mixed lesion with root resorption, boney expansion, and/or jaw pain. Microscopically, the epithelial component often resembles a follicular or plexiform variant of a conventional ameloblastoma. In contrast to an ameloblastoma, however, the surrounding mesenchyme consists of dental hard tissue in the form of a compound or complex odontoma.
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