MALFORMAÇÃO DE CHIARI I: RELATO DE CASO
DOI:
https://doi.org/10.46311/2318-0579.56.eUJ2714Keywords:
Malformação de Chiari I, descompressão da fossa posterior, cefaleia occipital, hidromieliaAbstract
RESUMO
Introdução: A Malformação de Chiari tipo I é uma alteração congênita e pouco prevalente que é originária de anomalias estruturais da base do crânio com uma fossa craniana posterior hipoplásica que leva à herniação das tonsilas cerebelares pelo forame magno. Relato do caso: Relatamos um paciente com Malformação de Chiari tipo I diagnosticado após trauma crânio-encefálico com exames de imagem que não mostraram alterações relacionadas ao trauma, entretanto com achado da anomalia, evidenciada pela insinuação inferior das tonsilas cerebelares no forame magno por cerca de 1,8 cm, hidromielia e coleções císticas na fossa posterior. Correlacionados o achado de imagem com sintomas prévios do paciente característicos, indicou-se a cirurgia e foi submetido à descompressão da fossa posterior do crânio com boa evolução. Conclusão: O tratamento cirúrgico adequado é capaz de obter resultados satisfatórios e duradouros com melhoria da qualidade de vida dos pacientes.
Palavras chave: Malformação de Chiari I, descompressão da fossa posterior, cefaleia occipital, hidromielia
ABSTRACT
Introduction: Chiari Malformation Type I is a congenital and less prevalent alteration that originates from structural abnomalities of the skull base with a hypoplasic posterior cranial fossa leading to herniation of the cerebellar tonsils by the foramen magnum. Case report: We report a pacient with Chiari Malformation Type I diagnosed after cranioencephalic trauma with imaging tests that showed no trauma-related changes, however with anomaly finding, evidenced by the inferior insinuation of the cerebellar tonsils in the foramen magnum for about 1.8 cm, hydromielia and cystic collections in the posterior fossa. Correlated the image finding with charateristics patient’s previous symptoms, the surgery was indicated and was submitted to decompression of the posterior fossa of the skull with good evolution. Conclusion: The adequate surgical treatment is capable of obtaining satisfactory and long-lasting results with improvement of patients quality of life.
Keywords: Chiari malformation Type I, posterior fossa decompression, occipital headache, hydromyelia.
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