Fig. 1

a CT during hepatic arteriography shows a heterogenous hypervascular tumor and venous tumor thrombus, corresponding to the right hepatic vein, extending into the IVC (white arrow). Ascites (black arrow) and pleural effusion (white arrowheads) is also documented. b CT during hepatic arteriography shows a heterogenous hypervascular tumor measuring 11.5 cm in diameter (white arrow). c CT during arterial portography shows a tumor defect and hypoperfused caudate lobe (white arrow); nevertheless, the caudate branch of the portal vein is patent. This implies congestion of the caudate lobe due to the IVC tumor thrombus. d–f The tip of the venous tumor thrombus extends into the right atrium (white arrow)