Postcatheterization arteriovenous fistula: CT, ultrasound, and arteriographic findings.
The most common etiology of arteriovenous fistulae (AVF) in the lower extremity is iatrogenic, usually from diagnostic or therapeutic angiographic procedures. The finding of a palpable groin thrill, early venous opacification on contrast-enhanced abdominal-pelvic CT, and typical findings on duplex ultrasonography establish the diagnosis. Anatomic confirmation is then made by arteriography. A case of an incidentally discovered AVF in patient presenting to the Emergency Department is presented. Radiographic findings concerning and subsequent management of this patient are then discussed.
Department of Radiology (Section of Interventional Radiology), Wilford Hall Medical Center, Lackland AFB, TX 78236, USA. seaytm@satx.rr.com
Thomas
T
Seay
Gregory
G
Soares
David
D
Dawson