A Histopathological and Immunohistochemical Analysis of Ameloblastic Fibrodentinoma

Ameloblastic fibrodentinoma (AFD) is considered a mixed odontogenic tumor that is characterized by conserved epithelial and ectomesenchymal neoplastic components. AFD is composed of long narrow cords and islands of odontogenic epithelium; the epithelial strands lie in a myxoid cell-rich ectomesenchy...

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Bibliographic Details
Main Authors: Ronell Bologna-Molina, Sirced Salazar-Rodríguez, Ana María Bedoya-Borella, Ramón Gil Carreón-Burciaga, Gabriel Tapia-Repetto, Nelly Molina-Frechero
Format: Article
Language:English
Published: Wiley 2013-01-01
Series:Case Reports in Pathology
Online Access:http://dx.doi.org/10.1155/2013/604560
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Summary:Ameloblastic fibrodentinoma (AFD) is considered a mixed odontogenic tumor that is characterized by conserved epithelial and ectomesenchymal neoplastic components. AFD is composed of long narrow cords and islands of odontogenic epithelium; the epithelial strands lie in a myxoid cell-rich ectomesenchymal tissue with stellate-shaped fibroblasts that exhibit long slender cytoplasmic extensions that resemble dental papilla. The lesions show the presence of dysplastic dentin. Although AFD is a rare entity and its very existence is not completely accepted, based on the extent of histodifferentiation, it is considered to represent a stage between ameloblastic fibroma and ameloblastic fibroodontoma. This study aimed to provide a histopathological and immunohistochemical characterization of this infrequent tumor. A large panel of antibodies including amelogenin, Ck 19, calretinin, syndecan-1, E-cadherin, MSH2, histone H3, and Ki-67 was used to illustrate the nature of the tumor.
ISSN:2090-6781
2090-679X