Figure 7c. (a) Arteriogram obtained in a 65-year-old man who presented with acute ischemia of the left lower extremity shows occlusion of the left popliteal artery and aneurysmal dilatation of the right popliteal artery. (b) Computed tomographic scan depicts a coexisting AAA with mural thrombus (*) and a partially open lumen (arrow). Thrombolysis of the left popliteal artery and trifurcation vessels was performed. (c, d) Postlysis images show patency of the popliteal artery (c) and trifurcation vessels (d), which includes the tibioperoneal trunk (*), anterior tibial artery (arrow), and posterior tibial artery (arrowhead). The patient underwent bypass surgery on both popliteal arteries.