A esquistossomose do sistema nervoso central (SNC) é relativamente rara 18 . Ocorre principalmente na medula espinhal 10 , sendo responsável por cerca de seis 27 a 13,4% 7 das mielopatias nas áreas endêmicas, não ultrapassando de 200 o número de casos descritos na literatura 17 .A localização intracraniana, notadamente nos hemisférios cerebrais, é bem mais rara 21 .O mesmo acontece com a localização cerebelar. Até o momento tinham sido descritos cerca de onze casos de forma tumoral nesta localização. Este seria, portanto, o décimo segundo caso da literatura e o primeiro em que se determina a área dos granulomas. ABSTRACT An unusual case of the tumoral form of cerebellar Schistosomiasis mansoni, in a 15 year-old male diagnosed by biopsy, with neurological signs and symptoms 60 days prior to surgery. Computerized tomography show a hyperdense expanding lesion located in cerebellum, suggesting glioma. Histopathological examination showed numerous S. mansoni ova involved by granulomatous inflammation in necrotic-exudative phase, located mainly in the internal, granular layer of the cerebellum, creating a pseudotumor in the cerebellar vermis and a recent hemorrhage in the trunk. The areas of granulomas were measured.
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