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Necrosis tumoral demostrada por RM posterior a la embolización de meningiomas intracraneales

Keywords: meningioma, embolization, tumoral necrosis.

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Abstract:

objective: to demonstrate postembolization tumoral necrosis in patients with intracraial meningiomas before operation. material and methods: the report includes 4 patients with intracranial meningiomas: 3 supratentorial and 1 infratentorial. they all underwent angioembolization with avp and n-butyl-cianocrylate supraselective in branches of external carotid. seven days later they all had mri which demonstrated total embolization. a follow up was carried out on all these patients, starting from clinical preparation to 6 months postoperatory surgical registrations for verification. results: seven days postembolization there was tumoral necrosis, demonstrated by mri and transoperatory confirmation. there was no increment of peritumoral cerebral edema neither neurological deterioration related to angioembolization. there was facility to resection of meningioma secondary to necrosis, better aspiration, diminishing operatory time and hemorrhage. all patients had excellent clinical evolution. there was confirmation for pathology of tumoral necrosis. conclusion: the preoperatory angioembolization is effective to produce tumoral necrosis in intracraneal meningiomas when it carried out at 100%, evidenced on the seventh day.

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