Abstract
Hepatofugal portal flow develops under various conditions due to the absence of valves in the portal vein. This finding can be appreciated on color and spectral Doppler sonography in patients with 1) diffuse liver diseases, 2) focal hepatic tumors, or 3) hepatic trauma or iatrogenic injury. Pathophysiologically, hepatofugal portal flow is attributed to arterioportal shunt. Nontraumatic arterioportal shunt can be classified into the following types: transsinusoidal, transvasal, transplexal and transtumoral.
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