Diagnosis of Aortocaval Fistula by Computed Tomography
A case of an aortocaval fistula documented by contrast-enhancement computed tomography is reported. In the presence of a large abdominal aortic aneurysm, the computed tomography (CT) triad findings of: (1) vena caval effacement, (2) loss of the fat plane between the aorta and vena cava, and (3) rapid flow of contrast from the aorta into a dilated inferior vena cava is characteristic of an aortocaval fistula.
Atkins, C. P.,
Clark, M. D.,
& Matsuura, J. H.
(1998). Diagnosis of Aortocaval Fistula by Computed Tomography. Annals of Vascular Surgery, 12 (1), 86-87.