Fig. 2

a B-mode ultrasonography: The hepatic tumors were polycyclic, isoechoic and inhomogeneous. Doppler sonography showed a compression in the IVC hepatic segment by the liver tumors with consecutive development of partial Budd Chiari syndrome diagnosed by the retrograde flow pattern in the right hepatic vein and the presence of subcapsular venous collaterals. b Contrast enhanced ultrasonography (CEUS): CEUS was performed using a bolus injection of 1.5 mL SonoVue® (Bracco SpA, Milan, Italy). The largest lesion showed a large, avascular center with hypervascular margin in the arterial phase. In the late venous phase parts of the center and the margin showed wash-out