“…Symptomatic arterioportal fistulae require urgent endovascular intervention. 5 Ultrasonography/Doppler in a case of arterioportal fistula causing portal hypertension can demonstrate a dilated portal vein with arterial waveforms and hepatofugal flow. CT/magnetic resonance (MR) angiography can establish the diagnosis of the fistula with an early and prolonged contrast opacification of the dilated portal vein in the arterial phase of the study, in addtion to the visualization of the fistula itself between the hepatic artery and the portal vein.…”