Percutaneous biopsy of portal vein thrombus: a new staging technique for hepatocellular carcinoma.

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Abstract
Accurate staging of hepatocellular carcinoma is necessary to determine appropriate treatment. In particular, neoplastic invasion of the portal vein is a contraindication for hepatic resection or transplantation. Unfortunately, imaging cannot always differentiate benign from malignant portal vein thrombi. We therefore undertook a study to determine the efficacy and safety of sonographically guided percutaneous biopsy of portal vein thrombi as a staging technique for patients with hepatocellular carcinoma.

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