Abstract
Few data are available on histological features of chronic hepatitis B (HBV) and C (HCV) virus coinfection. We enrolled 142 consecutive patients with viral chronic hepatitis on their first liver biopsy: 27 HBsAg and anti-HCV positive (case BC group), 57 HBsAg positive and anti-HCV negative (control B group) and 58 anti-HCV positive, HBsAg/anti-HBs/anti-HBc negative (control C group). Patients in the case BC group showed serum HBVDNA (37% vs 71.9%, p < 0.005) and ground-glass hepatocytes (37% vs 66.7%, p < 0.01) less frequently than those in the control B group. The case BC group showed a lower prevalence of patients with detectable HCV-RNA than the control C group (60% vs 92.3%, p < 0.001) and a significantly higher fibrosis score (2.1 +/- 1.2 vs 1.5 +/- 1.1, p < 0.05). Of the 27 patients in the case BC group, 10 lacked serum HCV-RNA and showed significantly higher histological activity index (HAI) and fibrosis scores than those found in the 17 HCV-RNA positive (8.5 +/- 4.4 vs 5.4 +/- 2.4 for HAI, p < 0.05; 3.0 +/- 1.3 vs 1.69 +/- 1.0, p < 0.05 for fibrosis). Liver histology seems to be more severe in chronic coinfection with HBV and HCV than in single infection, particularly when HCV replication is impaired.
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