Early enhancement of the inferior vena cava on helical CT.
Arteriovenous fistulas (AVFs) are abnormal communications between the arterial and the venous systems. We describe two cases in which an aortocaval fistula (ACF) and a deep femoral AVF were diagnosed on dynamic computer tomography (CT) by early transient enhancement of the inferior vena cava (IVC). Awareness of the specific CT features found in central and peripheral AVFs and the effects on the arterial and venous systems may enable the radiologist to make the diagnosis.
Cura
Marco
M
Department of Radiology, Mount Sinai Medical Center, 4300 Alton Rd, Miami Beach, FL 33140, USA. marcocura@hotmail.com
Cura
Alejandro
A
Bugnone
Alejandro
A
D000328:Adult; D001011:Aorta / Q000002:abnormalities*; D001164:Arteriovenous Fistula / Q000000981:diagnostic imaging*; D005260:Female; D005263:Femoral Artery / Q000002:abnormalities*; D005268:Femoral Vein / Q000002:abnormalities*; D006801:Humans; D008297:Male; D008875:Middle Aged; D036542:Tomography, Spiral Computed / Q000379:methods*; D014682:Vena Cava, Inferior / Q000002:abnormalities* / Q000000981:diagnostic imaging*