When to Suspect an Aortoenteric Fistulae
Aortoenteric fistulas are rare, but it is a life-threatening condition which should be suspected early whenever a patient has a history of aortic surgery, known as aortic aneurysm, or unexplained massive gastrointestinal hemorrhage. There are two types of aortoenteric fistulas, primary and secondary. Primary fistulas are likely to present with a preceding minor gastrointestinal bleed known as a herald bleed. Secondary fistulas occur after abdominal aortic surgery.
KeywordsAortoenteric fistula Herald bleed CT angiography
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