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Vol. 20. Issue 3.
Pages 272-277 (January 2009)
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Vol. 20. Issue 3.
Pages 272-277 (January 2009)
DOI: 10.1016/S1130-1473(09)70167-8
Ictus isquémico mesencefálico aislado secundario a ruptura de quiste dermoide
Isolated mesencephalic stroke related to a ruptured intracranial dermoid cyst
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J.M. Ramírez-Moreno??, V. Bejarano-Moguel, M.J. Gómez-Baquero
Sección de Neurología. Unidad de Resonancia Magnética. Badajoz
M. Ortega-Martínez*, M.A. Fernández-Gil**, L.M. Bernal-García*, I. Fernández-Portales*, J.M. Cabezudo-Artero*
* Servicio de Neurocirugía. Unidad de Resonancia Magnética. Badajoz
** Servicio de Radiología. Complejo Hospitalario Universitario Infanta Cristina. Badajoz
Article information
Resumen

Los quistes dermoides son lesiones benignas de origen embrionario que representan del 0.04 a 0,25% de todos los tumores intracraneales. Estos quistes ocasionalmente pueden romperse diseminándose el contenido graso intraquístico al espacio subaracnoideo y/o los ventrículos laterales. En este caso puede provocar diversas manifestaciones clínicas de forma aguda o retardada. El debut de este tipo de tumor con un ictus agudo está escasamente reflejado en la literatura. Presentamos el caso de una mujer de 26 años con un infarto mesencefálico aislado secundario a la ruptura de un quiste dermoide. Discutimos el mecanismo fisiopatológico supuesto y realizamos una revisión de los casos recogidos en la literatura.

Palabras clave:
Infarto mesencefálico aislado
Ictus
Quiste dermoide
Vasoespasmo
Resonancia magnética cerebral
Tumor cerebral
Abreviaturas:
QD
IIM
IIMa
Summary

Dermoids cysts are embrionary benign lesions that comprise approximately 0.04-0.25% of all intracranial tumors. Occasionally they break and spread their content into subarachnoid space and/or lateral ventricles causing several acute or delayed symptoms. Debut of this type of tumor as acute stroke is poorly reflected in literature. We present a 26-year-old woman with a isolated mesencephalic infarct secondary to spontaneous rupture of a dermoid cyst. We discuss the possible pathophysiological mechanisms for this condition and review the literature.

Key words:
Isolated mesencephalic stroke
Dermoid cyst
Vasospasm
Magnetic resonance
Stroke
Intracranial tumors

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