Fig. 1

Compression of the inferior vena cava by foci of hepatic metastases. Computed tomographic scan of the abdomen and pelvis with intravenous contrast shows that the inferior vena cava (green arrows) becomes progressively more compressed by the tumor superiorly to inferiorly. a Patent inferior vena cava at the level of the pancreas. d Near-complete compression of the inferior vena cava at a level of the superior portion of the kidneys. a-d Superiorly to inferiorly