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The Computerized Tomographic Appearance of Angiographically Occult Arteriovenous Malformations of the Brain

Published online by Cambridge University Press:  18 September 2015

Richard Leblanc  and
Roméo Ethier
Richard Leblanc*
Affiliation:
The Montreal Neurological Hospital and McGill University, Montreal, Quebec, Canada
Roméo Ethier
Affiliation:
The Montreal Neurological Hospital and McGill University, Montreal, Quebec, Canada
*
The Montreal Neurological Hospital, 3801 University Street, Montreal, Quebec, Canada H3A 2B4
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Summary

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Eight patients with a histologically proven angiographically occult arteriovenous malformation of the brain had plain and infused computed tomographic (CT) examinations. In five cases angiography revealed a hypovascular mass and in three cases the angiogram was normal. On CT examination a high density lesion (six cases) and ventricular asymmetry (five cases) were demonstrated. In three patients presenting with intracerebral hemorrhage, the high density appearance and ventricular compression were accounted for by the presence of hematoma. In three of five seizure patients the high density lesion was associated with calcification while ipsilateral (one case) and contralateral (one case) enlargement of the lateral ventricle was seen. In five of the eight cases the vascular nature of the lesion was suggested by vascular enhancement of the infused CT scan. Glioma was a common misdiagnosis.

Type
Research Article
Information
Canadian Journal of Neurological Sciences , Volume 8 , Issue 1 , February 1981 , pp. 7 - 13
Copyright
Copyright © Canadian Neurological Sciences Federation 1981

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