ABSTRACTTwelve aorto‐enteric fistulas are reviewed. The typical presentation is a patient with gastrointestinal bleeding (acute or chronic) and an abdominal aortic graft, often with symptoms of infection. Endoscopy and computed tomography are the most useful preoperative investigations. False aneurysms seen on aortography can be confused with normal suture line irregularity. A nipple projecting from the aneurysm is very suggestive of a fistula, while contrast extravasation is diagnostic, but rarely seen. Barium studies and ultrasound can be helpful.
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