Ameloblastic fibroma (AF) is a relatively rare, slow growing benign mixed odontogenic tumor, comprising of 1.5-4.5% of all odontogenic tumors. It is usually asymptomatic except for the eventual expansion of the jaw. AFs are most common in adolescents and young adults, mostly affecting the mandible as a well-defined uni or multilocular radiolucency. The effective surgical treatment includes enucleation and curettage of the surrounding bone and removal of the affected teeth. Although recurrence of AF is rare, a long term follow up is recommended. This report describes a 1-year-old girl with AF in the mandible and discusses its clinical, radiographic and histological findings.
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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3687179 | PMC |
http://dx.doi.org/10.4103/0973-029X.110734 | DOI Listing |
Am J Surg Pathol
October 2024
Department of Oral Pathology, Peking University School and Hospital of Stomatology.
Ameloblastic fibroma (AF) and related lesions, namely ameloblastic fibrodentinoma (AFD) and ameloblastic fibro-odontoma (AFO), span a spectrum from true neoplasms to hamartomas. The 2017 World Health Organization classification proposes that AFD and AFO are precursors to odontomas, yet their precise nature remains uncertain. This study examined 19 AF cases, 4 AFD, 15 AFO, 19 odontomas (OD, 14 complex, 5 compound), and 2 ameloblastic fibrosarcomas (AFS), focusing on clinical characteristics, recurrence, and molecular profiles.
View Article and Find Full Text PDFOral Dis
October 2024
Cell Culture Laboratory, School of Dentistry, Federal University of Pará, Belém, Brazil.
The acetylation of histones H2A on lysine 5 (H2AacK5) and H3 on lysine 27 (H3AcK27) modulate several cellular mechanisms through the p300 enzyme in pathological lesions; however, their role in odontogenic lesions has not been addressed. This study aims to evaluate the immunoexpression of p300, H2AacK5, and H3AcK27 in samples of ameloblastoma (AMB) (n = 30), odontogenic keratocyst (OK) (n = 15), adenomatoid odontogenic tumor (AOT) (n = 10), odontogenic fibroma (OF) (n = 8), calcifying odontogenic cyst (COC) (n = 8), odontogenic myxoma (MIX) (n = 10), and ameloblastic fibroma (AF) (n = 06). The percentage of p300-positive cells was higher in AOT and decreased in COC, OK, AMB, AF, OF, and MIX.
View Article and Find Full Text PDFOral Maxillofac Surg
December 2024
Department of Oral Diagnostic and Surgical Sciences, University of Otago, Dunedin, New Zealand.
Med Oral Patol Oral Cir Bucal
September 2024
Universidade Federal do Rio Grande do Sul Faculdade de Odontologia, Rua Ramiro Barcelos, 2492, sala 503 CEP: 90035-003, Santana, Porto Alegre RS, Brazil
J Craniomaxillofac Surg
October 2024
Department of Oromaxillofacial Surgery and Stomatology, Semmelweis University, 1088, Budapest, Hungary.
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