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É registrado o caso de um paciente que apresentava um aneurisma gigante da artéria cerebral média esquerda, e volumosa malformação vascular hemodinamicamente relacionada. Após extirpação da malformação vascular, houve desaparecimento espontâneo do aneurisma, conforme demonstrado em angio-grafias repetidas uma semana, seis meses e um ano após cirurgia. Atribuímos o fato à redução do fluxo sanguíneo regional cerebral, após a extirpação da malformação vascular, e a tendência natural desses aneurismas gigantes se trombosarem parcialmente.

A case of a patient with a giant aneurysm of the left middle cerebral artery and a huge arteriovenous malformation hemodinamically related is reported. Complete thrombosis of the aneurysm was observed after extirpation of the arteriovenous malformation as shown by angiography one week, six months and a year post-operatively. Reduction of the regional cebral blood flow after extirpation of the arteriovenous malformation and the natural tendency of these giant aneurysms to partially thrombose were to be the explanation for our result.

Index code	Element
ti	article title
au	author
kw	article keywords
subject	subject (title words, abstract and keywords)
ab	abstract
ta	journal short title (e.g. Cad. Saúde Pública)
journal_title	journal full title (e.g. Cadernos de Saúde Pública)
la	publication language code (e.g. pt - Portuguese, es - Spanish)
type	document type
pid	publication identifier
publication_year	publication year of publication
sponsor	sponsor
aff_country	country code of the author's affiliation
aff_institution	author affiliation institution
volume	article volume
issue	article issue
elocation	elocation
doi	DOI number
issn	journal ISSN
in	SciELO colection code (e.g. scl - Brasil, col - Colômbia)
use_license	article usage license code

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