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Computed tomographic demonstration of inferior vena cava invasion in a case of hepatocellular carcinoma.

A case of hepatocellular carcinoma with neoplastic invasion of the inferior vena cava is presented. Computed tomograms before and after injection of contrast medium revealed an unusual density enhancement of the wall of the invaded portion of the vena cava. This sign is correlated with an angiographic sign of venous invasion present in our case.