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Vol. 14. Issue 5.
Pages 409-416 (January 2003)
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Vol. 14. Issue 5.
Pages 409-416 (January 2003)
Meningiomas recidivantes con agresividad progresiva y posterior extensión extracraneana. Análisis de 2 casos
Recurrent meningiomas with progressive aggressiviness and posterior extracranial extension
E. Spagnuolo
, A. Calvo, A. Erman, A. Tarigo
Servicio de Neurología y Neurocirugía. Hospital Maciel MSP. Montevideo. Uruguay
G. Mañana*
* Servicio de Neuropatología. Hospital Maciel MSP. Montevideo. Uruguay
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Resumen

Los meningiomas son tumores mayoritariamente benignos. Representan aproximadamente el 15% de los tumores intracraneanos primitivos.

La exéresis quirúrgica macroscópicamente completa de los mismos, lleva en sí la posibilidad de la curación definitiva.

A pesar de ello, las recidivas se comprueban entre un 9% y un 12% de los casos, después de las resecciones de este tipo, en la operación inicial. Este porcentaje sube al 40% en casos de exéresis no totales. Las recidivas pueden tener cambios histológicos hacia la agresividad, e incluso malignizarse.

Se presentan dos casos de meningiomas originalmente benignos, con varias recidivas y agresividad progresiva, que llevaron en ambos a una extensión extracraneana de las lesiones, traspasando incluso plastias durales sintéticas (Dacron “Fabric Elastic de De Bakey”), y la malla de titanio que cubría la craniectomía.

Palabras clave:
Meningiomas
Meningiomas recidivantes
Meningiomas agresivos
Cirugía
Summary

Meningiomas are in most cases benign tumors.

They represent about 15% of primitive intracranial tumors.

Complete surgical resection achieves healing in the majority of patients. Recurrences occur in 9 to 12% in spite of that kind of surgical resection in the initial approach. This percentage rises to 40% when removing was not complete. Recurrences sometimes show histological changes into aggressiveness, and even malignization.

Two cases of originally benign meningiomas with several recurrences and progressive aggressive behaviour, are presented. Both cases led to extracranial extension of the lesions, even passing through synthetic dural grafts (De Bakey's Dacron Fabric-Elastic) and the Titanium mesh covering the craniectomy.

Key words:
Meningiomas
Recurrent meningiomas
Agressive Meningiomas
Surgery

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