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Figure 8a. Proximal right common iliac artery stenosis in a 51-year-old man with persistent hypertension and a rising serum creatinine level with a renal transplant in the right iliac fossa. (a) Digital subtraction angiogram of the distal aorta and common iliac arteries shows proximal right common iliac artery stenosis with a systolic pressure gradient of 50 mm Hg. PTA was performed with a 10-mm balloon catheter. (b) Angiogram obtained after PTA shows restoration of the normal luminal diameter of the right common iliac artery without a pressure gradient.