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Fig. 2B. —Percutaneous ethanol injection guided by CO₂-enhanced sonography in 64-year-old woman with Child's class C cirrhosis [9] and hepatocellular carcinoma with new lesion during follow-up period. Conventional sonogram fails to show tumor that was seen in A in anterior superior segment. Stent of transjugular intrahepatic portosystemic shunt is revealed as highly echoic area (arrow).