Abdominal aortic ectasia resulting from peripheral traumatic arteriovenous fistulization.

A 61-year-old World War II fighter pilot sustained a gunshot injury to the right fibula and an arteriovenous fistula subsequently developed. Angiographic examination 44 years later for evaluation of an abdominal aortic aneurysm showed an unusually shaped aneurysm and the right arteriovenous fistula with antegrade dilation of the ipsilateral arterial system in continuity with the aneurysm. We hypothesize that this arteriovenous fistula, which involved the peroneal and anterior tibial arteries of the right leg of 44 years' duration, was responsible for the development of this man's abdominal aortic aneurysm.