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Vol. 4. Núm. 3.
Páginas 223-226 (enero 1992)
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Vol. 4. Núm. 3.
Páginas 223-226 (enero 1992)
Quiste aracnoideo sacro postraumático
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6368
M. Gelabert González, A. Prieto González, A. Bollar Zabala, A. García Allut, R. Martínez Rumbo
Servicio de Neurocirugía. Hospital General de Galicia-Clínico Universitario. Instituto Universitario de Ciencias Neurológicas «Pedro Barrie». Universidad de Santiago de Compostela
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Resumen

Los quistes aracnoideos espinales representan una causa poco frecuente de compresión medular y/o radicular. La mayoría son de origen congénito, habiéndose descrito algunos casos secundarios a traumatismos del raquis.

Presentamos el caso de un paciente, que desarrolla un cuadro radicular 20 años después de haber sufrido un traumatismo perforante en la región sacra. Los estudios de Te y RM permitieron diagnosticar un quiste aracnoideo sacro del cual fue intervenido quirúrgicamente.

Se revisa la etiología, mecanismo patogénico y las técnicas de diagnóstico, concluyendo con la importancia de la R.M. en la correcta evaluación de estos quistes.

Palabras clave:
Quiste aracnoideo espinal
Traumatismo raquídeo
Resonancia Magnética
Summary

Spinal cysts represent a rare cause of spinal cord and nerve root compression.

We report a case of sacrum intradural arachnoid cyst presenting with low-back pain radiating down the left leg 20 years after a penetrating injury to the sacral spine. The diagnosis was verified by computed tomography and magnetic resonance imaging.

The etiological and pathological features are discussed. We concluded that RM is the modality of choice in the demonstration of spinal arachnoid cysts.

Key words:
Arachnoid cyst
Magnetic resonance imaging
Spinal injury

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