Fig. 6
From: All about portal vein: a pictorial display to anatomy, variants and physiopathology
Congenital intrahepatic portosystemic shunt. MPR image from late arterial phase CT displaying the most common type of congenital intrahepatic portosystemic shunt (type 1), with a single vessel connecting the right PV with the IVC. Note the large caliber of both afferent PV branch and efferent hepatic vein, and the presence of a variceal dilatation between both, appearing as a rounded enhancing mass. If considering this focal varix as an aneurysm, we can classify this shunt as a type 3 either