Fig. 1
a–d Contrast-enhanced abdominal CT (a) and MRI (b–d) showed a 6 × 4 × 5 cm mass (solid arrow) protruding into the lumen of the IVC. The mass was located slightly superior to the renal vein confluence, ventrally compressing the hepatic hilum, and the right portal vein was stenotic. The MRI showed areas of decreased Gd-EOB–DTPA uptake at S1 (5 mm × 1), S5 (15 mm × 1, dotted arrow), and S6 (5 mm × 1) in the hepatocellular phase (c) e Three-dimensional reconstructed image. GB gall bladder, RPV right portal vein, LRV left renal vein, CT computed tomography, MRI magnetic resonance imaging