"Aortoiliac-Mesenteric Steal Syndrome" Treated with Inferior Mesenteric to Common Iliac Artery Transposition.

We report the case of a 54-year-old female who presented with chronic mesenteric ischemia symptoms which could also be provoked on walking 50-100 m. Computed tomography angiography demonstrated ostial occlusion of all 3 mesenteric vessels, with extensive collateralization reconstituting the inferior mesenteric artery from the iliac arteries. As such, her abdominal pain was secondary to preferential flow to the lower limbs stealing from mesenteric vasculature. Endovascular management was trialed, but failed after short-term improvement, so the patient underwent successful transposition of inferior mesenteric to left common iliac artery. Mesenteric ischemia presenting with pain on walking secondary to preferential flow to the lower limbs has not been previously reported, and vascular and general surgeons should be aware of this unusual differential for abdominal pain.