Parenchymal abnormalities associated with developmental venous anomalies.

Parenchymal abnormalities associated with developmental venous anomalies. Research Abstract Details 

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Parenchymal abnormalities associated with developmental venous anomalies. Abstract Text:

Diego ,Jacqueline Delavelle,Hasan Yilmaz,Philippe Gailloud,Enrico Piovan,Alberto Bertramello,Francesca Pizzini,Daniel A ,

INTRODUCTION: To report a retrospective series of 84 cerebral developmental venous anomalies (DVAs), focusing on associated parenchymal abnormalities within the drainage territory of the DVA. METHODS: DVAs were identified during routine diagnostic radiological work-up based on magnetic resonance imaging (MRI) (60 cases), computed tomography (CT) (62 cases) or both (36 cases). Regional parenchymal modifications within the drainage territory of the DVA, such as cortical or subcortical atrophy, white matter density or signal alterations, dystrophic calcifications, presence of haemorrhage or a cavernous-like vascular malformation (CVM), were noted. A stenosis of the collecting vein of the DVA was also sought for. RESULTS: Brain abnormalities within the drainage territory of a DVA were encountered in 65.4% of the cases. Locoregional brain atrophy occurred in 29.7% of the cases, followed by white matter lesions in 28.3% of MRI investigations and 19.3% of CT investigations, CVMs in 13.3% of MRI investigations and dystrophic calcification in 9.6% of CT investigations. An intracranial haemorrhage possibly related to a DVA occurred in 2.4% cases, and a stenosis on the collecting vein was documented in 13.1% of cases. Parenchymal abnormalities were identified for all DVA sizes. CONCLUSION: Brain parenchymal abnormalities were associated with DVAs in close to two thirds of the cases evaluated. These abnormalities are thought to occur secondarily, likely during post-natal life, as a result of chronic venous hypertension. Outflow obstruction, progressive thickening of the walls of the DVA and their morphological organization into a venous convergence zone are thought to contribute to the development of venous hypertension in DVA.

Parenchymal abnormalities associated with developmental venous anomalies. Publishing Authors By Initials

D ,J Delavelle,H Yilmaz,P Gailloud,E Piovan,A Bertramello,F Pizzini,DA ,

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Parenchymal abnormalities associated with developmental venous anomalies. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: Neuroradiology

VOLUME: 49

Page Numbers: 987-95

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ISSN: 0028-3940

DAY: 17

MONTH: 08

YEAR: 2007

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LANGUAGE: eng

NlmUniqueID: 1302751

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AFFILIATION: Division of Interventional Neuroradiology, Johns Hopkins Hospital, 600 N. Wolfe Street, Baltimore, MD, 21287, USA, dsanmil1@jhmi.edu.

Country: Germany

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MEDLINETA: Neuroradiology

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