Epidermoid Cyst of the IV Ventricle: Case Report

  • Ribeiro W
  • Camelo R
  • da Silva J
  • et al.
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Abstract

Epidermoid cysts constitute congenital, benign and rare lesions, corresponding to ∼ 0.2% to 1.8% of all intracranial tumors. Only 5% of the cases are located in the fourth ventricle. Despite their genesis in intrauterine life, they are usually diagnosed between the third and fifth decades of life due to their very slow growth pattern. The image weighted by the diffusion of the magnetic resonance is essential to establish the diagnosis. The ideal treatment consists of emptying the cystic content with complete capsule resection. In the present work, we report the case of a 31-year-old female with cerebellar syndrome that evolved with intracranial hypertension. The symptomatology was due to an obstructive hydrocephalus by an epidermoid cyst located inside the fourth ventricle, which was confirmed by the pathological anatomy.Os cistos epidermoides constituem lesões congênitas, benignas e raras, que correspondem a cerca de 0,2% a 1,8% de todos os tumores intracranianos, sendo que em apenas 5% dos casos localizam-se no quarto ventrículo. Apesar de sua gênese na vida intrauterina, são geralmente diagnosticados entre a terceira e quinta década de vida em decorrência de seu padrão de crescimento muito lento. A imagem ponderada pela difusão da ressonância magnética é fundamental para a formulação do diagnóstico. O tratamento ideal consiste no esvaziamento do conteúdo cístico com ressecção completa da cápsula. Neste trabalho, é descrito um caso de uma paciente de 31 anos de idade com síndrome cerebelar, evoluindo com síndrome de hipertensão intracraniana. A sintomatologia era decorrente de hidrocefalia obstrutiva por cisto epidermoide localizado no interior do quarto ventrículo, confirmado pela anatomia patológica.

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Ribeiro, W. C. da S., Camelo, R. M., da Silva, J. I., Malta, M. V., Camelo, R. C., Alves Filho, A. C., … Ferreira, A. H. R. (2020). Epidermoid Cyst of the IV Ventricle: Case Report. Arquivos Brasileiros de Neurocirurgia: Brazilian Neurosurgery, 39(01), 041–045. https://doi.org/10.1055/s-0037-1606260

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