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  • Title: Clinical features of HBsAg-negative but anti-HBc-positive hepatocellular carcinoma in a hepatitis B virus endemic area.
    Author: Shim J, Kim BH, Kim NH, Dong SH, Kim HJ, Chang YW, Lee JI, Chang R.
    Journal: J Gastroenterol Hepatol; 2005 May; 20(5):746-51. PubMed ID: 15853989.
    Abstract:
    BACKGROUND: The presence of antibody to the hepatitis B core antigen (anti-HBc) IgG in serum usually means a past infection of the hepatitis B virus (HBV). The clinical characteristics of patients with hepatocellular carcinoma (HCC), who have only a marker for past HBV infection, were investigated. METHODS: A total of 565 HCC patients were classified according to their markers for HBV and the hepatitis C virus (HCV). The clinical features and the survival rate of hepatitis B surface antigen (HBsAg)(-)/anti-HBc(+) patients were compared to those of HBsAg(+) patients. RESULTS: Four hundred and three patients were positive for HBsAg (B group, 71.3%), 64 were positive for anti-HCV (11.3%), and 90 were negative for both HBsAg and anti-HCV (N group, 15.9%). In the N group, 71 were positive for anti-HBc (PB group, 12.6% of total patients). The clinical characteristics of the PB group were different from those of the B group: age at diagnosis (60.6 +/- 9.6 vs 53.3 +/- 10.6 years, P < 0.001), habitual drinking (59.2% vs 23.6%, P < 0.001), family history of liver disease (9.9% vs 38.9%, P < 0.005), detection with periodic screening (28.2% vs 50.4%, P < 0.001), and elevated alpha-fetoprotein (53.5% vs 76.2%, P < 0.001). In both the PB group and the B group, liver cirrhosis was accompanied by a similar high prevalence (74.6% vs 89.1%). However, there was no significant difference in the cumulative survival rate. CONCLUSIONS: The prevalence of HBsAg(-)/anti-HBc(+) HCC is not rare or more common than that of anti-HCV(+) HCC in Korea, a high HBV endemic area. Although some differences in clinical characteristics may imply a different pathogenesis, chronic HBV infection or habitual drinking may be major contributing factors in the development of HCC in these patients.
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