Aorto-iliac steal syndrome - A rare case of renal hypoperfusion

In aorto-iliac occlusive disease a diversion of blood flow from visceral ar teries to lower limbs rarely occurs. This condition is known as aorto-iliac steal syndrome. This report is about the case of a male patient affected b y chronic atherosclerotic occlusion of the aorta associated with an aorto-i liac steal supported by an anomalous vessel coming from the left renal arte ry to the homolateral external iliac artery to the detriment of the renal b lood flow. Renal sequential scintiscan (RSS) at rest and after stress test was employed to assess renal blood flow and excretory functions before and after an aorto-bifemoral bypass. Surgical revascularization permitted rever sal of the steal phenomenon and the improvement of left renal blood flow.