case_images: PMC6506916_01
case_images: CT angiogram in the arterial phase. Both common iliac veins are demonstrated
  in this image - both have contrast present within them even though the
  imaging has been performed in the arterial phase, and the right common iliac
  vein in particular is grossly dilated. The right common iliac artery is
  indicated by the arrow - it is clear that there is no plane between the
  artery and the 'arterialised' venous system, consistent with the clinical
  suspicion of an iatrogenic arteriovenous fistula.
case_images: 10.1177_2050313X19847805-fig1.jpg
case_images: PMC6506916_01_10.1177_2050313X19847805-fig1.jpg
case_images: fig1-2050313X19847805
case_images: Appearances were highly suspicious of an ilio-iliac fistula (Figure 1).
case_images: Pre-deployment angiography demonstrates a large volume of contrast in the
  inferior vena cava. In this image, the Amplatzer  plug can be seen in the
  internal iliac artery origin and the Endurant  stent limb can be seen in the
  common iliac/external iliac arteries ready to be released. In the
  post-deployment image, the Endurant  stent graft limb is seen positioned
  well in the origin of the common iliac artery, extending into the external
  iliac artery - there is no contrast in the venous system demonstrated and
  the internal iliac artery has been adequately managed.
case_images: 10.1177_2050313X19847805-fig2.jpg
case_images: PMC6506916_01_10.1177_2050313X19847805-fig2.jpg
case_images: fig2-2050313X19847805
case_images: Angiography demonstrated a large fistula with almost the entire contrast passing into the venous system (Figure 2).