A 70-year-old woman was admitted to our hospital because of a liver tumor. Laboratory data revealed mild liver dysfunction. Neither serum anti-HCV antibody nor HCV-RNA was detected. Computed tomography revealed a tumor lesion measuring 2 cm in diameter within the liver. Histological examination of the tumor revealed moderately differentiated hepatocellular carcinoma while the non-tumorous liver tissue demonstrated liver cirrhosis. By the RT-PCR method, HCV-RNA was detected from the non-tumorous liver tissue. We herein report a very rare case of hepatocellular carcinoma in a patient with liver cirrhosis associated with negative serum HCV findings, but positive finding for liver tissue HCV RNA.
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