Acute iliac arterial thrombosis during laparoscopic abdominoperineal resection

Figure 1:. Preoperative abdominal CT showed bilateral iliac arterial stenosis to 5 mm diameter with calcification (the arrows). Internal iliac arteries had been obstructed bilaterally.

Figure 2:. Postoperative 3D-contrast enhanced CT revealed the complete obstruction of left common iliac artery (CIA). The sagittal section through the left iliac artery and the graph of left CIA’s internal diameter showed significant stenosis.

Figure 3:. (a) Pre-intervention aortography demonstrating occlusion of the left CIA and the development of collateral circulation in left pelvic cavity. (b) Post-intervention aortography showing improvement of occlusion by a percutaneous transluminal angioplasty (PTA) with stent.