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- W2740756997 abstract "RESUMO - A real incidencia do tumor neuroepitelial disembrioplastico (DNT) e desconhecida. Diferentesestimacoes foram feitas, de acordo com o tipo de recrutamento dos pacientes. Nas series provenientes de pacientesoperados por epilepsia farmaco-resistente, as taxas variam amplamente, de 5% a 87%. Em uma serie de 600tumores pediatricos do sistema nervoso central, 9 DNT foram encontrados (1,5%). Como o DNT foi identificadoapenas em 1988, revimos nossos casos (1975-1991) de gangliogliomas (n=25), oligoastrocitomas (n=9),oligodendrogliomas do lobo temporal (n=11), astrocitomas grau II (OMS 1993) (n=44), independentemente daidade dos pacientes, bem como todos os astrocitomas grau II (n=61) e oligodendrogliomas (n=10) em pacientesate a idade de 20 anos. Sete DNT foram encontrados. Quatro haviam sido previamente diagnosticados comogangliogliomas e 3, como astrocitomas grau II. A partir de 1992, 4 outros DNT foram diagnosticados, perfazendoum total de 11 casos. Oito pacientes tinham menos de 17 anos (6 a 17, media 10,3 anos) e tres tinham 27, 42 e 51anos. Oito tumores eram temporais, 1 frontal e 2 occipitais. Todos os pacientes apresentavam epilepsia farmaco-resistente. Dentre todos os tumores neuroepiteliais diagnosticados em nosso Servico nos ultimos 22 anos, DNTcompreedem 1,2% em pacientes ate 20 anos (n=660), 0,24% em pacientes acima de 20 anos (n=1254), e 0,63%na totalidade dos pacientes (n=1914).PALAVRAS-CHAVE: tumor neuroepitelial disembrioplastico, neoplasias do sistema nervoso central,epidemiologia, cirurgia da epilepsia.Dysembryoplastic neuroepithelial tumor: an epidemiological study from a single institutionABSTRACT - The true incidence of dysembryoplastic neuroepithelial tumor (DNT) is unknown. Variableestimations have been advanced according to the type of recruitment of patients. In series of patients with tumorswho were operated on for pharmacoresistant epilepsy, the rates varied widely, from 5% to 87%. Among 600pediatric tumors in a series, 9 DNT (1.5%) were found. Since DNT was identified only in 1988, we reviewed ourcases (1975-1991) of gangliogliomas (n=25), oligoastrocytomas (n=9), temporal oligodendrogliomas (n=11),temporal astrocytomas grade II (OMS 1993) (n=44) irrespective to age, as well as all astrocytomas grade II(n=61) and oligodendrogliomas (n=10) in patients up to 20 years of age. Seven DNT were encountered. Fourcases had been formerly diagnosed as gangliogliomas and 3 as astrocytomas grade II. From 1992 on, 4 moreDNT were diagnosed, making up a total of 11 cases. Eight patients were under age 17 (6y to 17 y, mean 10.3y)and 3 were 27, 42 and 51 year-old. Eight tumors were temporal, 1 frontal and 2 occipital. All patients have hadpharmacoresistant epilepsy. Among all neuroepithelial tumors diagnosed in our Division in the last 22 years,DNT comprises 1.2% in patients under age 20 (n=660), 0.24% in patients over 20 years (n=1254), and 0.63% allages considered (n=1914).KEY WORDS: dysembryoplastic neuroepithelial tumor, central nervous system neoplasms, epidemiology,surgery of epilepsy." @default.
- W2740756997 created "2017-08-08" @default.
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- W2740756997 date "1998-01-01" @default.
- W2740756997 modified "2023-09-27" @default.
- W2740756997 title "TUMOR NEUROEPITELIAL DISEMBRIOPLSTICO ESTUDO EPIDEMIOLGICO DE UMA ⁄NICA INSTITUI˙ˆO" @default.
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- W2740756997 hasPublicationYear "1998" @default.
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