Navegando por Assunto "Neurocriptococose"
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Item Acesso aberto (Open Access) Neurocriptococose pediátrica no Estado do Pará: espectro de achados tomográficos na infecção por Cryptococcus neoformans var. gattii(Universidade Federal do Pará, 2001-09-05) CORRÊA, Maria do Perpétuo Socorro Costa; MAGALHÃES, Luiz Marconi Fortes; http://lattes.cnpq.br/6032076996211936; SEVERO, Luiz Carlos; http://lattes.cnpq.br/8729316807859951This study shows the spectrum of computed tomography (CT) findings in children's neurocryptococcosis due to Cryptococcus neoformans var. gatfii, in the State of Para. We analysed the cranial CT scan appearance of eleven children (younger than 13 years of age) with proven central nervous Cryptococcus neoformans var. gattii infection, between January 1992 and December 2000, who were horizontalized were referred to Hospital universitário João de Barros Barreto, Belém, PA, Brazil. Intracranial cryptococcosis was defined by identification of encapsulated yeast by microscopic examination and isolation of Cryptococcus neoforman from cerebrospinal fluid and positive identification of the var. gattii with use of canavanine-glycine-bromothymol blue agar media, with at least a cranial CT study obtained at the time of the diagnosis. The age range was 6 years to 12 years, with a mean age of 8,8 years. Six were girls and five were boys. The most common clinical findings were headache, fever and nuchal rigidity (n=11 ); nausea and vomiting (n=10). The mean time from onset of symptoms to diagnosis was 4.2 weeks (range, 2 to 8 weeks). No normal cranial CT was detected in any patient. In all patients were observed hypodense nodules. The remaning scan abnomalities were as follows: six had hydrocephalus, nine had diffuse atrophy, and five had hydrocephalus coexistant with diffuse atrophy. We described by the first time cranial CT scan findings in series of case of neurocryptococcosis due Cryptococcus neoformans var. gaftii in immunocompetent children. This study shows that this infection most commonly develops multiple hypodense nodules, mainly in the basal ganglia region and in the cerebral white matter. These lesions apparently progress to important atrophy of the cerebral white matter, with ventricular dilatation and prominence of cerebral sulci, consequent of a presumable compensatory hydrocephalus. In general, these patients present mild changes in cerebral cortex.