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Vol. 25. Issue 1.
Pages 38-42 (January - February 2014)
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Vol. 25. Issue 1.
Pages 38-42 (January - February 2014)
Caso clínico
Meduloblastoma congénito asociado a quiste aracnoideo intracraneal
Congenital medulloblastoma associated with intracranial arachnoid cyst
Miguel Gelabert Gonzáleza,
Corresponding author
miguel.gelabert@usc.es

Autor para correspondencia.
, Ramón Serramito-Garcíaa, Mercedes Liñares Pazb, Eduardo Aran-Echabea, Alfredo García-Alluta
a Servicio de Neurocirugía, Departamento de Cirugía, Hospital Clínico Universitario de Santiago, Universidad de Santiago de Compostela, Santiago de Compostela, La Coruña, España
b Servicio de Radiología Infantil, Departamento de Cirugía, Hospital Clínico Universitario de Santiago, Universidad de Santiago de Compostela, Santiago de Compostela, La Coruña, España
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Resumen

Los quistes aracnoideos intracraneales constituyen una patología frecuente en la edad infantil y su tratamiento quirúrgico se realizará en función de su sintomatología y su localización. Habitualmente se trata de lesiones únicas, aunque pueden asociarse a otras patologías tanto malformativas como tumorales. Presentamos el caso clínico de un varón recién nacido diagnosticado de un quiste aracnoideo de la cisterna cuadrigeminal que fue tratado mediante endoscopia. En el postoperatorio, ante un empeoramiento neurológico se diagnosticó un meduloblastoma de cerebelo que no se evidenciaba en los estudios neurorradiológicos previos y del que se realizó una extirpación parcial. Dada la edad del paciente y el pobre pronóstico, no se realizó tratamiento oncológico. La asociación de un meduloblastoma de cerebelo y un quiste aracnoideo es excepcional, y hasta donde podemos conocer únicamente existe en la bibliografía un caso similar.

Palabras clave:
Cisterna cuadrigeminal
Endoscopia
Hidrocefalia
Meduloblastoma
Quiste aracnoideo
Tumor cerebral congénito
Abstract

Arachnoid cysts are very common lesions in paediatric patients, with treatment depending on their location and symptomatology. They are usually solitary cysts but may be associated with other central nervous system diseases such as tumours and congenital deformities. We describe the case of a neonate diagnosed with an arachnoid cyst of the quadrigeminal cistern treated by endoscopy. After the operation, the child's condition worsened; a CT scan revealed a midline posterior fossa tumour not visible in the preoperative neuroradiological tests. The tumour, a medulloblastoma, was partially removed. Given the child's age and the poor prognosis, oncological treatment was not undertaken. The association between medulloblastoma and arachnoid cyst is very rare, and we could find only one such case in the literature.

Keywords:
Quadrigeminal cistern
Endoscopic treatment
Hydrocephalus
Medulloblastoma
Arachnoid cysts
Congenital brain tumour

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