Thrombosis of a Drainage Vein in Developmental Venous Anomaly (DVA) Leading Venous Infarction: A Case Report and Review of the Literature

Developmental venous anomalies (DVAs) are common congenital venous drainage anomalies. Although they typically have a benign clinical course and a low symptomatic rate, thrombosis of a drainage vein may occur, leading to potentially debilitating complications. We report imaging findings of posterior fossa DVA with a thrombosed drainage vein in a patient with nonhemorrhagic cerebellar infarct. We also review the relevant literature on the subject. © 2009 by the American Society of Neuroimaging