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Congenital right renal arteriovenous fistula (AVF) in a 25-year-old asymptomatic woman. (A) Right main renal artery angiogram shows a large AVF with an aneurysmal venous outflow. Note early opacification of the inferior vena cava. (B) Postembolization, there is successful occlusion of the AVF with coils. No early opacification of the venous outflow is seen. (C) The inferior pole was supplied by an accessory renal artery, which did not contribute to the fistula.
