Connection between a long-standing traumatic arteriovenous fistula and development of aneurysmal disease.

Long-standing peripheral arteriovenous fistulas (AVFs) are always accompanied by ectasia of the proximal arteries. In the literature, traumatic fistulas of the lower limbs are frequently reported to be associated with iliac and even infrarenal aortic aneurysms; however, no study dealing with associated visceral aneurysms has been published. We report a case in which a traumatic AVF was accompanied by the late development of not only an infrarenal aortic aneurysm but also both superior mesenteric and right renal artery aneurysm. No causal relationship may be inferred between the tibial fistula and the other aneurysms, but this previously unreported finding does raise the question of a possible connection.