title: [Meningiomas. Histopathological aspects and recurrence].
abstract: The authors assessed 246 cases of meningiomas that were classified as typical, atypical, anaplastic and papillary, according to previously defined criteria. Among the criteria used to define non-typical tumours, brain invasion was predominant in 62.3%. Meningiomas were typical in 75.22%, atypical in 19.1%, anaplastic in 5.68% of the cases. There was recurrence in 3.78% of typical, 42.55% of atypical and 45.45% of anaplastic. The authors conclusion was that the criteria used to define typical and non-typical were adequate to predict a higher chance to tumour recurrences
authors.affiliation: Departamento de Patologia da Fundação Faculdade Federal de Ciências Médicas de Porto Alegre (FFFCMPA), Brasil.
authors.forename: A
authors.initials: A
authors.lastname: Hilbig
authors.forename: L M
authors.initials: LM
authors.lastname: Barbosa-Coutinho
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D002648:Child; D002675:Child, Preschool; D006801:Humans; D008297:Male; D008577:Meningeal Neoplasms / Q000473:pathology*; D008579:Meningioma / Q000473:pathology*; D008875:Middle Aged; D009364:Neoplasm Recurrence, Local
vernacular_title: Meningeomas. Aspectos histopatológicos e recidiva.