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Three-dimensional, volume-rendered reconstruction of rotational digital subtraction angiography during the venous phase after selective internal carotid artery injection (lateral view). A parietal DVA preferentially drains superficially towards the superior sagittal sinus (SSS), though it has retained a connection (arrow) with the internal cerebral vein (ICV) by way of a direct lateral vein (arrowheads). This dual superficial and deep drainage of DVAs is often overlooked during routine imaging studies, but may act as an important collateral pathway if the major collecting vein becomes occluded.
Lasjaunias PBurrows PPlanet C: Developmental venous anomalies (DVA): the so-called venous angioma. Neurosurg Rev 9:233–2421986
Walsh MParmar HMukherji SKMamourian A: Developmental venous anomaly with symptomatic thrombosis of the draining vein. Report of 2 cases. J Neurosurg 109:1119–11222008
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