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Aortoduodenal fistula

Case contributed by Faeze Salahshour
Diagnosis certain

Presentation

Hematochezia and abdominal pain. Fresh blood on colonoscopy.

Patient Data

Age: 70 years
Gender: Male
ct

A large outpouching from the right anterolateral wall of the abdominal aorta at the level of the third duodenal portion is noted, with proximity and loss of interface fat plane. The outpouching contains mural thrombosis. No air bubble is depicted in the aortic lumen or wall. No contrast extravasation into the duodenum is seen.

Case Discussion

The patient underwent surgery and a large fistula with thrombosis was found between the saccular aneurysm and third duodenal portion.

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