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BIBTEX RIS

Maxillary ameloblastic fibroma: a case report

2011; Fundação Odontológica de Ribeirão Preto; Volume: 22; Issue: 2 Linguagem: Inglês

10.1590/s0103-64402011000200015

1806-4760

Daniela Otero Pereira da Costa, Adriana Terezinha Neves Novellino Alves, Mônica Diuana Calasans‐Maia, Ricardo Lopes da Cruz, Simone de Queiroz Chaves Lourenço,

Tumors and Oncological Cases

Ameloblastic fibroma is a relatively rare benign odontogenic tumor in which both the epithelial and ectomesenchymal components are neoplastic. An 8-year-old Caucasian boy was referred to the dentist for evaluation of failed eruption of the maxillary left first molar. The panoramic radiograph showed a well-circumscribed unilocular radiolucency involving an unerupted maxillary left first permanent molar. The lesion was enucleated and the material was sent for histopathologic examination. Microscopically, it was composed by cords and islands of odontogenic epithelium in a myxoid cell-rich stroma that closely resemble the dental papilla with histopathological diagnosis of ameloblastic fibroma. After 24 months of follow-up no recurrence was observed and the maxillary left first molar erupted spontaneously through the buccal mucosa and was aligned with a fixed orthodontic appliance. This case emphasized the importance of careful differential diagnosis of intraosseous oral lesions and reported a rarity of the lesion and its atypical location.