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A) Intranidal positioning of the Microcatheter, Marathon™, in a small AVM of the left trigonum in an oblique projection and superselective injection of contrast media. B-D) Angiogram of the right vertebral artery in an early and later arterial (B,C) and venous phase (D) in the same projection, demonstrating the small arterial feeders and nidus with moderate flow and the main venous draining vein into the left sinus transversus.
