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Fig. 6B —59-year-old woman with orthotopic liver transplantation for chronic hepatitis C virus. Color Doppler sonogram slightly tilted relative to previous image shows right hepatic vein (out of plane) draining through collateral vessel (arrowhead) to middle hepatic vein (mhv), resulting in presence of "bicolored" hepatic vein. Collateral vessel connecting occluded (or stenotic) hepatic vein to neighboring patent hepatic vein (blue) results in presence of "bicolored" hepatic veins. Thus, "bicolored" phenomenon consists of flow, which turns away and toward transducer in same vessel. In this case, it was incidental finding that was thought to be related to stenosis of hepatic vein because junction with vena cava was not clearly depicted.