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Aortoenteric fistulas: CT features and potential mimics.
Radiographics
March 2009
Mallinckrodt Institute of Radiology, Washington University School of Medicine, 510 S Kingshighway Blvd, St Louis, MO 63110, USA.
Prompt diagnosis of aortoenteric fistulas is imperative for patient survival. The clinical signs of aortoenteric fistula include hematemesis, melena, sepsis, and abdominal pain, but the condition also may be clinically occult. Because clinical signs may not be present or may not be sufficiently specific, imaging is most often necessary to achieve an accurate diagnosis.
View Article and Find Full Text PDFParaprosthetic extravasation of enteric contrast: a rare and direct sign of secondary aortoenteric fistula.
AJR Am J Roentgenol
March 2005
University of Chicago, Department of Radiology, 5841 S. Maryland Ave., Chicago, IL 60637, USA.
Secondary aorto-intestinal or paraprosthetic fistulas had developed in seven patients after implantation of an angioprosthesis. In six cases, the fistula was located in the duodenum, in each case after a bifurcation bypass had been established, whereas in one case the fistula occurred in the area of the caecum (unilateral aortofemoral bypass as preliminary operation). Gastrointestinal bleeding was the initial sign in five patients, preceding in each case the final massive haemorrhage as a typical premonitory haemorrhage by several days.
View Article and Find Full Text PDFSuccessful preoperative diagnosis of aortoenteric fistula is often difficult. Clinical findings, roentgenography, angiography, and endoscopy have been used in diagnosis with only partial success. Newer techniques of gallium citrate Ga 67 scanning, ultrasonography, and computed tomographic (CT) scanning have been used in recent years to establish the diagnosis of aortic graft infection or aortoenteric fistula.
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