Primary Aortoduodenal Fistula in a Patient With Multiple Duodenal Diverticula.

A 67-year-old man with massive hematemesis was transferred to the emergency unit of our hospital. The patient was diagnosed with primary aortoduodenal fistula (PADF) based on the CT findings. Upon emergent exploration, multiple duodenal diverticula were found and in situ abdominal aortic aneurysm (AAA) repair using polytetrafluoroethylene (PTFE) graft was performed. The third and fourth parts of the duodenum with multiple duodenal diverticula and the origin of jejunum were excised, and end-to-side duodenojejunostomy was performed. The patient was discharged on the 38th postoperative day with another 6 month oral antibiotic treatment. The duodenal diverticula may be the cause for PADF.