Clinicopathologic features of ameloblastoma in southern Brazil: a 55-year single-center analysis

• Published in: Revista odonto ciência Vol. 31; no. 1; p. 1
• Main Authors: De Carvalho, Ana Luisa Homem, Martins, Manoela Domingues, Da Rosa, Francinne Miranda, Saudades, Annemarie, Filho, Manoel Sant´Ana
• Format: Journal Article
• Language: English
• Published: Porto Alegre EDIPUCRS 2016
• ISSN: 0102-9460; 1980-6523
• DOI: 10.15448/1980-6523.2016.1.15352

Abstract Objective: Ameloblastoma is a benign odontogenic tumor (OT) originating from the proliferation of odontogenic epithelium without involvement of the mesenchymal tissue. The aims of the present study were to perform a retrospective analysis of ameloblastoma, compare the findings with those described in previous studies and outline the epidemiological profile of this type of tumor in southern Brazilian population. Methods: Cases of ameloblastoma were retrieved between 1954 and 2009 from a single center and analyzed for age, gender, ethnic, primary site and histological type. Cases were classified according to the 2005 WHO classification of OTs. Results: Descriptive statistical analysis of the data was performed, with the determination of the frequency of the categorical variables. Eighty-nine cases of ameloblastoma were found: 78 cases of solid tumor (88.6%), two cases of desmoplastic tumor (2.2%) and nine cases of the unicystic tumor (10.2%). There was a predominance of the female gender (58.4%) and Caucasian ethnicity (62.9%). Most ameloblastomas were located in the mandible (78.6%) and 40.2% occurred prior to the third decade of life. Conclusion: The present findings are in agreement with those reported in previous studies carried out in other states of Brazil and support that notion that there may be a geographical influence on the profile of patients affected by ameloblastoma.