FIG 3. Imaging studies in a 41-year-old man (case 4) with a large hemorrhage of the left paracentral lobule.

A, Oblique arterial-phase left internal carotid angiogram shows early venous drainage in the absence of a clearly defined nidus. Note stenosis of the draining vein at the junction with the superior sagittal sinus (arrow).

B, Superselective exploration of the paracentral branch of the left callosomarginal artery allows identification of the nidus with demonstration of another stenosis (arrow) in the proximal tract of the draining vein.

C and D, After successful embolization, left internal carotid angiograms show the glue cast of the nidus and the draining vein (C) in the absence of any residual arteriovenous shunting (D). C is an arterial-phase oblique view; D, a capillary-phase lateral view.