<unk>  also known as Aorotilliac occlusive disease or Leriche Syndrome is a type of Peripheral Arterial Disease (PAD). Peripheral Arterial Disease is caused by occlusion of an artery due to atherosclerotic plaque buildup, thrombosis or embolism. PAD normally affects the distal femoral artery, but<unk>  is caused by occlusion of the infrarenal aorta and beyond. The Aorta gives off the renal branches at the L1/ L2 spine level and it branches into the Right and Left Common Illiac Arteries at the L4 spine level.<unk>  can include the Common Illiac arteries and it's branches. Depending on it's underlying cause it can present acutely or chronically.
Acute causes include thrombosis and embolism, while chronic causes include atherosclerotic plaque formation
Aortoiliac disease
Loefflers syndrome
Hemophilia
Raynaud's disease
Bing–Neel syndrome
Buerger's disease
Bernard-Soulier syndrome
Aortoiliac occlusive disease