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Objetivo: Estabelecer o perfil demografico, clinico e imagenologico dos casos de mixoma odontogenico (MO). Metodos: Foi realizado um estudo do tipo retrospectivo, a partir do acervo do laboratorio de histopatologia oral da Universidade Federal de Pernambuco no qual foram revisados todos os casos de mixoma odontogenico diagnosticados no periodo de periodo de 2000 a 2018, segundo os dados obtidos da ficha clinica de solicitacao de exame histologico, com posterior reavaliacao microscopica. A analise estatistica foi de carater descritivo. Resultados: Foram encontrados 10 casos de mixoma odontogenico, o que representou 0.15% de todas as lesoes diagnosticadas no periodo. O mixoma acometeu principalmente mulheres na terceira decada de vida. A localizacao mais comum foi a mandibula, e a principal caracteristica foi o aumento de volume assintomatico. Radiograficamente as lesoes eram radiolucidas e multiloculares. Em todas as lesoes foram observadas as tipicas celulas de origem mesenquimal, fusiformes, arredondadas ou estreladas, dispersas em uma matriz mixoide abundante. Tempo de evolucao medio de 22 meses. Conclusao : O MO acometeu principalmente mulheres na terceira decada de vida. As lesoes em sua maioria ocorreram em mandibula, assintomaticas, sendo o aumento de volume o sinal clinico mais frequente. Nao foram encontrados achados histologicos incomuns. Descritores: Mixoma, Tumores odontogenicos, Estudos retrospectivos A bstract Objective: To establish the demographic, clinical and imaging profile of patients diagnosed with odontogenic myxoma (OM). Methods: this retrospective study was carried out from the collection of the laboratory of oral pathology of the Federal University of Pernambuco, in which all cases of odontogenic myxoma diagnosed during the period from 2000 to 2018 were reviewed, according to data obtained from the record histological examination request. Subsequently, all OM cases were reassessed microscopically. A descriptive statistical analysis was performed. Results: There were found ten cases of odontogenic myxoma, representing 0.15% of all lesions diagnosed in the period. The myxoma mainly affected women in the third decade of life. The most common location was the mandible, and the main characteristic was the asymptomatic volume increase. Radiographically the lesions were radiolucent and multilocular. In all of the lesions, typical mesenchymal, fusiform, rounded or stellate cells dispersed in an abundant myxoid matrix were observed. Conclusions : OM had preference for women in the third decade of life. The lesions occurred mostly in the mandible, asymptomatic, being the volume increase the most frequent clinical sign. There was no unusual histological findings. Keywords: Myxoma, Odontogenic tumors, Retrospective studies

arquivos médicos dos hospitais e da faculdade de ciências médicas da santa casa de são paulo

Estudo retrospectivo de casos de mixoma odontogênico diagnosticados em um Serviço de Histopatologia Oral / Retrospective study of odontogenic myxoma cases diagnosed in an Oral Pathology Center