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FIG 4. Case 4. A 62-year-old woman with dAVF in the left CS.
A, Lateral intra-arterial DSA of the left ICA shows retrograde venous drainage to the superior ophthalmic (arrow) and pontomedullary (arrowheads) veins.
B, Enhanced 3D MP RAGE image shows cephalocaudal, contiguous enhancing structures (arrow) at the ventral side of midbrain corresponding to retrograde venous drainage to the pontomedullary vein.
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