Figure 8c. (a) Angiogram obtained in a 16-year-old girl, who sustained injury to the popliteal artery during arthroscopy, underwent bypass grafting (vein graft), and presented with an enlarging popliteal mass, shows a pseudoaneurysm (*) of the native popliteal artery (arrowhead) related to the iatrogenic injury. The vein graft is patent (arrows). (b) Angiogram obtained after coil embolization of the native popliteal artery distal and proximal to the pseudoaneurysm (*) demonstrates the coils (arrowhead) and the vein graft (arrow). (c) Final angiogram shows patency of the graft (arrows) and no filling of the aneurysm or native popliteal artery. Color duplex US was used to follow up the aneurysm. (d) US image obtained 15 days later shows no flow and a shrinking aneurysmal sac. No further surgery was required.