Odontogenic tumors: clinical and pathology study of 238 cases

SummaryOdontogenic tumors are neoplasms that develops exclusively in the gnathic bones; they originate from odontogenic tissues, by epithelial or mesenchymal proliferation, or both.AimTo evaluate the incidence of odontogenic tumors in a specific institution, and to compare these findings with other studies in the literature.Study formatA cross-sectional cohort retrospective study.Material and methodThe sample was obtained from the files of patients with odontogenic tumors diagnosed between January 1992 and March 2007 (15 years). Cases in which the diagnosis could be adapted to the new World Health Organization (WHO) of 2005 were included. Data such as gender, age, anatomical site, histological type and symptomatology were analyzed.ResultsOdontogenic tumors were 4.76% of all biopsied lesions within the studied period. The mean age was 30.7 years; 57% of the patients were male. The keratocystic odontogenic tumor was the most prevalent histological type (30%), followed by the ameloblastoma (23,7%). The rate of asymptomatic cases was 75.7%.ConclusionOdontogenic tumors occurred more frequently in females, in the second and third decades of life, and more commonly in the mandible; most cases were asymptomatic

Agreement Between Clinical-Radiographic and Histopathological Diagnoses in Maxillofacial Fibro-Osseous Lesions

Objective: To compare the agreement of clinical and radiographic diagnosis with the histopathological diagnosis in fibro-osseous lesions of the jaws. Material and Methods: An analytical and exploratory study was made based on systematic collected data, carried out in the laboratory of surgical pathology of a public Dental School. There were evaluated cases of fibrous dysplasia (FD), cemento-osseous dysplasia (COD) and ossifyng fibroma (OF), diagnosed by clinical, radiographic (panoramic and periapical radiography), and histopathological analysis, in a period of 12 years (from March 2001 to June 2013). Descriptive and inferential statistics (Fisher's exact test) were obtained. Results: Ninety-six cases of FOLs were evaluated. The radiographic aspects of the FOLs studied did not differ significantly (p=0.09). Radiolucent lesions were the least frequent, corresponding to approximately 13.5% of radiographic findings. Mixed lesions and radiopaques were more present, how they were COD and FD, respectively. The more aggressive variation of OF (Juvenile Ossifying Fibroma - JOF) was less frequent among the pathologies evaluated. In approximately 61.46% of the cases clinical and radiographic diagnosis were confirmed by histopathological diagnosis of FOLs. The highest agreement and the highest disagreement were observed in COD cases (40.7% and 62.2%, respectively). Conclusion: FOLs of the maxillaries represent a group of lesions in which the establishment of the clinical and radiographic diagnosis supported by the histopathological confirmation is critical and challenging

Agreement Between Clinical-Radiographic and Histopathological Diagnoses in Maxillofacial Fibro-Osseous Lesions

Objective: To compare the agreement of clinical and radiographic diagnosis with the histopathological diagnosis in fibro-osseous lesions of the jaws. Material and Methods: An analytical and exploratory study was made based on systematic collected data, carried out in the laboratory of surgical pathology of a public Dental School. There were evaluated cases of fibrous dysplasia (FD), cemento-osseous dysplasia (COD) and ossifyng fibroma (OF), diagnosed by clinical, radiographic (panoramic and periapical radiography), and histopathological analysis, in a period of 12 years (from March 2001 to June 2013). Descriptive and inferential statistics (Fisher's exact test) were obtained. Results: Ninety-six cases of FOLs were evaluated. The radiographic aspects of the FOLs studied did not differ significantly (p=0.09). Radiolucent lesions were the least frequent, corresponding to approximately 13.5% of radiographic findings. Mixed lesions and radiopaques were more present, how they were COD and FD, respectively. The more aggressive variation of OF (Juvenile Ossifying Fibroma - JOF) was less frequent among the pathologies evaluated. In approximately 61.46% of the cases clinical and radiographic diagnosis were confirmed by histopathological diagnosis of FOLs. The highest agreement and the highest disagreement were observed in COD cases (40.7% and 62.2%, respectively). Conclusion: FOLs of the maxillaries represent a group of lesions in which the establishment of the clinical and radiographic diagnosis supported by the histopathological confirmation is critical and challenging

Mortalidade devido a queimaduras em crianças entre zero e quatro anos no Brasil / Mortality to burns in children between zero and four years in Brazil

Objetivo: Descrever o perfil sociodemográfico das vítimas fatais de queimaduras menores de quatro anos no Brasil e as causas mais comuns de morte.Métodos: Estudo quantitativo, epidemiológico, retrospectivo e descritivo de série histórica da causa de morte por queimaduras, no período de 2000 a 2014, no Brasil, essencialmente baseado em dados secundários oficiais de domínio público. A amostra constituiu-se dos registros de morte por queimaduras encontrada no Sistema de Informação de Mortalidade (SIM), organizada a partir da Classificação Internacional de Doenças em sua 10ª edição (CID-10).  Resultados: Entre 2000 e 2014, 1581 casos de morte por queimaduras foram relatados em crianças entre zero e quatro anos no Brasil. Mortes por queimadura atingem mais o sexo masculino (66,1%). A residência foi o local de 50% dos acidentes, e principal causa de morte envolveu correntes elétricas artificiais (71,22%). A região Nordeste foi a mais acometida no País (53,89%).Conclusões: Crianças do sexo masculino, em idade pré-escolar são mais suscetíveis a morrer vítimas de queimaduras, tendo sua residência como principal local do evento que a leva à óbito. Tendo em vista tais características, se faz necessário a intensificação de campanhas de conscientização e ações educativas a partir de políticas públicas para a contínua diminuição do número de vítimas de queimaduras em todo o País.

Abordagem intraoral para enucleação de extenso cisto odontogênico calcificante: um raro relato de caso / Intraoral approach to enucleation of extensive calcifying odontogenic cyst: a rare case report

O cisto odontogenico calcificante (COC) trata-se de uma lesão rara representando apenas 0,3% das biópsias da cavidade oral e 2% de todos os cistos e tumores odontogênicos. Com rara recidiva, o tratamento proposto é a enucleação com curetagem e acompanhamento do caso, porém a abordagem cirúrgica pode acarretar em severas sequelas estéticas e funcionais ao paciente. Esse trabalho tem como objetivo apresentar o relato de caso de um COC de grandes proporções na região anterior de mandíbula de um paciente de 67 anos de idade, que foi removido cirurgicamente por acesso um acesso intraoral. Conclui-se que, apesar de ser um tumor relativamente raro e poder atingir grandes dimensões, seu tratamento cirúrgico quando bem planejado e executado, pode não apenas evitar sequelas graves, mas restabelecer a harmonia facial