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Congenital anomaly of the external iliac artery: a case report.

A 51-year-old man was admitted with acute ischemic pain in the left leg. An angiogram demonstrated a well-developed left internal iliac artery that appeared to be continuous with the left common femoral artery, but no left external iliac artery. The left superficial and proximal deep femoral arteries were obstructed with thrombi. At surgery it was revealed that the distal end of the left common iliac artery was continuous with the dilated left internal iliac artery, forming the continuation with the left common femoral artery in the pelvic cavity. The left external iliac artery was absent between the common iliac and femoral arteries.