Cerebral venous angioma
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A hyperdense enhancing curvilinear structure noted across right cerebellar peduncle draining small radiating vessels from the pons and bilateral cerebellum.
Cerebral venous angioma (developmental venous anomaly) is the most common cerebral vascular malformation. It consists of an intraparenchymal tangle/cluster of dilated medullary veins converging on a single enlarged draining vein. It rarely bleeds.
Differential diagnosis: vascular malformation , venous varix