Pseudoaneurysm in the Left Groin due to Ruptured Knitted Dacron Graft.

An 82-year-old man was admitted to our institution with a painful pulsating mass in the left groin. He had undergone bypass surgery with a bifurcated Cooley double velour knitted Dacron graft to treat aorto-iliac occlusive disease 21 years previously. Computed tomography demonstrated a 35-mm pseudoaneurysm near the distal anastomosis site of the graft. Opening the aneurysm revealed that the graft was disrupted along the guideline. We resected the aneurysm and interposed an expanded polytetrafluoroethylene (ePTFE) graft. Vascular surgeons should consider that grafts can fail in patients with long-term prosthetic grafts.