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Ameloblastic fibroma

Nitin Verma, Neha
Ameloblastic fibroma (AF) is an uncommon true mixed odontogenic tumor, with a relative frequency between 1.5% and 4.5% of all odontogenic tumors. It may behave either as a true neoplasm or as a hamartomatous proliferation of odontogenic epithelium of the enamel organ and odontogenic mesenchyme of the primitive dental pulp. Frequently diagnosed between the first and second decades of life with 75% of cases was diagnosed before the age of 20 and present with a well-defined unilocular or multilocular radiolucencies...
July 2016: National Journal of Maxillofacial Surgery
Shahroo Etemad-Moghadam, Mojgan Alaeddini
BACKGROUND: Expression of various cellular/molecular factors change during the course of tumor formation from odontogenic tissues of the tooth germ. Evaluation of these factors can help provide a better perception of the tumorigenesis and biologic behavior of odontogenic tumors (OTs). Syndecan-1 is a heparan sulfate proteoglycan which has not been extensively investigated in these lesions. The objective of the present study was to assess the immunohistochemical expression of CD138 in adenomatoid odontogenic tumor (AOT), ameloblastic fibroma (AF) and odontogenic myxoma (OM) and to compare it with ameloblastoma and keratocystic odontogenic tumor (KCOT)...
January 2017: Journal of Oral Biology and Craniofacial Research
Elizabeth Ann Bilodeau, Bobby M Collins
This article reviews a myriad of common and uncommon odontogenic cysts and tumors. The clinical presentation, gross and microscopic features, differential diagnosis, prognosis, and diagnostic pitfalls are addressed for inflammatory cysts (periapical cyst, mandibular infected buccal cyst/paradental cyst), developmental cysts (dentigerous, lateral periodontal, glandular odontogenic, orthokeratinized odontogenic cyst), benign tumors (keratocystic odontogenic tumor, ameloblastoma, adenomatoid odontogenic tumor, calcifying epithelial odontogenic tumor, ameloblastic fibroma and fibroodontoma, odontoma, squamous odontogenic tumor, calcifying cystic odontogenic tumor, primordial odontogenic tumor, central odontogenic fibroma, and odontogenic myxomas), and malignant tumors (clear cell odontogenic carcinoma, ameloblastic carcinoma, ameloblastic fibrosarcoma)...
March 2017: Surgical Pathology Clinics
Mahsa Kalantari, Sahand Samieirad, Parisa Kalantari
Ameloblastic fibroma is a rare mixed odontogenic tumor mostly occurring in the posterior region of the mandible. The peripheral variant is very rare and to the best of our knowledge, only three cases have been reported in the English literature. In this report, we describe a case of peripheral ameloblastic fibroma in a 54-year-old woman with two years of follow-up.
December 2016: Journal of Dentistry
Hamed Mortazavi, Maryam Baharvand
This review article aimed to introduce a category of jaw lesions associated with impacted tooth. General search engines and specialized databases such as Google Scholar, PubMed, PubMed Central, MedLine Plus, Science Direct, Scopus, and well-recognized textbooks were used to find relevant studies using keywords such as "jaw lesion", "jaw disease", "impacted tooth", and "unerupted tooth". More than 250 articles were found, of which approximately 80 were broadly relevant to the topic. We ultimately included 47 articles that were closely related to the topic of interest...
September 2016: Imaging Science in Dentistry
Govind Raj K Nalabolu, Arif Mohiddin, Santhosh Kumar S Hiremath, Ravikanth Manyam, T Sreenivasa Bharath, P Ramanjaneya Raju
Epidemiological studies on odontogenic tumours conducted in different parts of the world emphasised variation in incidence and distributional pattern. Such epidemiological studies are obscured in Southern state of Andhra Pradesh in India. Present study was conducted at an institutional setup in South Indian population to assess the demographic data of odontogenic tumours. The retrospective study, which included all the odontogenic tumours from the archives of department of oral pathology, Dental teaching and Research Institution in southern part of India...
July 14, 2016: Journal of Infection and Public Health
Mehdi Ghandehari-Motlagh, Zahra Khosravi, Ghasem Meighani, Yahya Baradaran-Nakhjavani
INTRODUCTION: Ameloblastic fibro-odontoma (AFO) is defined as a benign odontogenic tumor with slow growing behavior. Its prevalence is rare. AFO is characterized by histologic features of ameloblastic fibroma (AF) with the formation of enamel and dentine. CASE PRESENTATION: This is a case report of AFO accompanied with a number of impacted deciduous teeth and its management in a 4-year old boy. Examination of oral cavity revealed an extensive swelling from midline to left deciduous maxillary first molar, covered with normal mucosa...
April 2016: Iranian Journal of Pediatrics
Rachael R Pillay, Arthur Bilski, Martin Batstone
BACKGROUND: Ameloblastic fibrosarcoma (AFS) is a rare odontogenic neoplasm of the jaw that usually arises de novo or through a malignant change in the mesenchymal component of a preexisting or recurrent benign fibroma. The majority of AFS cases reported in the literature arise in the mandible. CASE REPORT: A 35-year-old male presented with an asymptomatic left maxillary mass that on imaging was found to be effacing most of his maxillary sinus. He underwent a left maxillectomy with free-flap reconstruction and adjuvant radiotherapy to the tumor bed...
2016: Ochsner Journal
Franco Bertoni, Giacomo Del Corso, Patrizia Bacchini, Claudio Marchetti, Achille Tarsitano
Transformation of an ameloblastic fibroma to an ameloblastic fibrosarcoma has been reported rarely in the literature. The present case report describes such evolution in a patient under long-term follow-up. The patient was first treated in 2008, and he developed the malignant counterpart of the disease 2 years later. The patient is currently under careful long-term follow-up and is free of disease. This article describes the clinical and radiographic features, histological characteristics, immunohistochemical findings, and surgical treatment of the tumor...
October 2016: International Journal of Surgical Pathology
E Giorgini, C Conti, R Rocchetti, C Rubini, S Sabbatini, V Librando, G Tosi
Fourier transform infrared (FTIR) microspectroscopy is considered a useful tool in the biomedical field, for analysing in situ and at cellular level, very small areas of tissues and cells, with minimal sample preparation and without the use of stains or probes. This spectroscopic technique has been successfully applied to analyse biological samples from patients affected by tumoral pathologies, with particular attention to oral cavity lesions. In this study, we describe the application of FTIR microspectroscopy to characterize and discriminate the most recurrent benign and malignant diseases of oral cavity compartment...
January 2016: Journal of Biological Regulators and Homeostatic Agents
Sinan Tozoglu, Mukerrem Hatipoglu, Zeliha Aytekin, Elif Inanc Gurer
Ameloblastic fibroma (AF) is rare benign odontogenic tumour which usually occurs in the first two decades of life. It can occur either the mandible or maxilla but it is most frequently found in the posterior region of the mandible. Treatment of AF in usual is a conservative approach, such as enucleation and curettage but the aggressive lesions require a radical approach. A more radical approach should be considered in older patients who have likely high recurrence tendency. This report describes a case of AF in a 38-year-old female patient identified during a routine radiographic exam...
January 2016: European Journal of Dentistry
Manish Bhargava, Saloni Sood, Pallvi Rathore
Ameloblastic fibrodentinoma (AFD) is a debatable neoplasm with respect to its clinical, biological and histopathological diagnosis. The clinical and radiological presentation may mimic ameloblastic fibro odontoma, odontoma, ameloblastic fibroma and cemento-ossifying fibroma. We report an interesting case of AFD occurring in canine region of mandible in a one-year-old infant. From a review of English language literature, to the best of our knowledge this is the first case occurring in an infant. The purpose of this case report is to create awareness among the clinicians to make the best possible management of this controversial pathologic entity...
January 2016: Journal of Clinical and Diagnostic Research: JCDR
Angela C Chi, Brad W Neville
This article presents various odontogenic cysts and tumors, including periapical cysts, dentigerous cysts, odontogenic keratocysts, orthokeratinized odontogenic cysts, lateral periodontal cysts, glandular odontogenic cysts, ameloblastomas, clear cell odontogenic carcinomas, adenomatoid odontogenic tumors, calcifying epithelial odontogenic tumors, squamous odontogenic tumors, ameloblastic fibromas, ameloblastic fibro-odontomas, odontomas, calcifying cystic odontogenic tumors, and odontogenic myxomas. The authors provide an overview of these cysts and tumors, with microsopic features, gross features, differential diagnosis, prognosis, and potential diagnostic pitfalls...
December 2011: Surgical Pathology Clinics
Pragun Khandelwal, Amita Aditya, Amit Mhapuskar
Calcifying cystic odontogenic tumour (CCOT) is a relatively rare lesion of oral and maxillofacial region and forms only 2% of all odontogenic tumours. It was previously known as Calcifying odontogenic cyst and only recently has been classified as a tumour by WHO. The controversy regarding its origin can be owed to its diverse clinical and histopathological presentation and variation in reported malignant potential. It was first reported by Gorlin in 1962 and since then conundrum regarding its true nature has persisted...
November 2015: Journal of Clinical and Diagnostic Research: JCDR
Sabina Langer, Monisha Choudhury, Savita Agarwal, Parvesh Mehra
Ameloblastic fibroma is a rare, slow-growing benign mixed odontogenic tumor. It constitutes 2% of odontogenic tumors and is reported to occur at an age ranging from 6 months to 42 years. The youngest being a 7-week-old infant. We report a case of peripheral ameloblastic fibroma in a 2-week-old infant. The lesion presented since birth. It involved the maxilla with an extraosseous component involving the gingiva. A more or less conservative surgical approach of enucleation and curettage of the lesion was done under general anesthesia, trying to conserve the adjacent tooth buds...
October 2015: Journal of the Indian Society of Pedodontics and Preventive Dentistry
Zhaleh Mohsenifar, Samira Behrad, Fatemeh Mashhadi Abbas
BACKGROUND Ameloblastic fibrosarcoma (AFS) is a rare malignant odontogenic tumor with a mesenchymal component, showing sarcomatous features and epithelial nests resembling ameloblastic fibroma (AF). CASE REPORT We report a case of AFS showing epithelial dysplasia arising in a recurrent AF in the left mandible after 3 years in a 26-year-old man, which is regarded as an uncommon histopathologic finding in AFS. We also emphasize the comprehensive clinical, radiographic, and histopathologic evaluation, and immunohistochemical staining of this patient...
2015: American Journal of Case Reports
Fereydoun Pourdanesh, Mansoureh Mohamadi, Mohammad Moshref, Omid Soltaninia
Ameloblastic fibrosarcoma is a mixed odontogenic tumor that can originate de novo or from a transformed ameloblastic fibroma. This report describes the case of a 34-year-old woman with a recurrent, rapidly growing, debilitating lesion. This lesion appeared as a large painful mandibular swelling that filled the oral cavity and extended to the infratemporal fossa. The lesion had been previously misdiagnosed as ameloblastoma. Twenty months after final surgery and postoperative chemotherapy, lung metastases were diagnosed after she reported respiratory signs and symptoms...
October 2015: Journal of Oral and Maxillofacial Surgery
Il-Kyu Kim, Sang-Pill Pae, Hyun-Young Cho, Hyun-Woo Cho, Ji-Hoon Seo, Dong-Hwan Lee, In-Shu Park
Odontogenic carcinosarcoma is an extremely rare malignant odontogenic tumor with only a few reported cases. It is characterized by a true mixed tumor showing malignant cytology of both epithelial and mesenchymal components. It has been assumed to arise from pre-existing lesions such as ameloblastoma, ameloblastic fibroma, and ameloblastic fibrosarcoma. To date, the reported cases have exhibited considerably aggressive clinical behavior. The case of an odontogenic carcinosarcoma in the mandible of a 61-year-old male is described herein...
June 2015: Journal of the Korean Association of Oral and Maxillofacial Surgeons
Leonardo de Araújo Melo, Adna Conceição Barros, Sandra de Cássia Santana Sardinha, Arlei Cerqueira, Jean Nunes dos Santos
INTRODUCTION: Ameloblastic fibroma (AF) is a rare benign odontogenic tumor that usually occurs in the fi two decades of life. It affects adolescents and young adults and is found in the mandible and with a high frequency in the posterior region of this segment. There are rare case reports with a long-term follow-up. CASE OUTLINE: We report the case of a 6-year-old boy with extensive ameloblastic fibroma in the man ble. Treatment consisted of enucleation and bone curettage, with the preservation of permanent teE adjacent to the tumor...
March 2015: Srpski Arhiv za Celokupno Lekarstvo
Sílvia F Sousa, Ricardo S Gomez, Marina G Diniz, Vanessa F Bernardes, Flávia F C Soares, João Artur R Brito, Sophie Liu, Hélder Antônio R Pontes, Constantine A Stratakis, Carolina C Gomes
The surgical treatment of some odontogenic tumors often leads to tooth and maxillary bone loss as well as to facial deformity. Therefore, the identification of genes involved in the pathogenesis of odontogenic tumors may result in alternative molecular therapies. The PRKAR1A gene displays a loss of protein expression as well as somatic mutations in odontogenic myxomas, an odontogenic ectomesenchymal neoplasm. We used a combination of quantitative RT-PCR (qRT-PCR), immunohistochemistry, loss of heterozygosity (LOH) analysis, and direct sequencing of all PRKAR1A exons to assess if this gene is altered in mixed odontogenic tumors...
June 2015: Endocrine-related Cancer
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