title: CT detection of aortocaval fistula.
abstract: We describe a patient in whom a secondary aortocaval fistula was diagnosed on dynamic CT by noting transient enhancement of the inferior vena cava simultaneously with maximum enhancement of the aorta. This pattern of caval enhancement is contrasted with the gradual increase and subsequent plateauing of caval opacification seen normally.
mesh_terms: D000368:Aged; D001012:Aorta, Abdominal / Q000601:surgery; D001018:Aortic Diseases / Q000000981:diagnostic imaging*; D001027:Aortography; D001164:Arteriovenous Fistula / Q000000981:diagnostic imaging*; D001807:Blood Vessel Prosthesis; D006801:Humans; D008297:Male; D014057:Tomography, X-Ray Computed; D014682:Vena Cava, Inferior / Q000000981:diagnostic imaging*