Fig. 1From: Blood pressure shifts resulting from a concealed arteriovenous fistula associated with an iliac aneurysm: a case reportComputed tomography showing bilateral common iliac artery aneurysms and a dilated vena cava. Postoperatively, we could detect the enhanced paravertebral vein (arrow). The non-enhanced vena cava indicated an arteriovenous fistula located distal to the vena cavaBack to article page