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A 68-year-old man with a left cerebellar hematoma. A and B, Type IV DAVF of the tentorium draining into the lateromesencephalic vein, then through a large venous ectasia into the central vein, then to the basal vein and straight sinus. C and D, Injection of Onyx resulted in occlusion of the origin of the draining vein. E, Extensive thrombosis of the draining vein and ectasia due to shunt occlusion with cerebellar rebleeding.
