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Granulomas and hepatitis C

R D Goldin1, T S Levine, G R Foster

  • 1Department of Histopathology, St Mary's Hospital Medical School, London, UK.

Histopathology
|March 1, 1996
PubMed
Summary
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Granulomas are more common in Hepatitis C (HCV) patients than in Hepatitis B or alcohol-related liver disease. However, another cause for granulomas should be investigated in half of HCV cases.

Area of Science:

  • Hepatology
  • Gastroenterology
  • Immunology

Background:

  • Hepatitis C (HCV) presents with distinct histological features.
  • Previous research indicated an increased granuloma frequency in HCV resection specimens.

Purpose of the Study:

  • To evaluate the frequency of granulomas in liver biopsy specimens from Hepatitis C patients.
  • To compare granuloma prevalence in HCV with Hepatitis B (HBV) and alcohol-induced liver disease.

Main Methods:

  • Retrospective analysis of 155 HCV biopsy specimens.
  • Inclusion of control groups: 151 HBV and 129 alcohol-induced liver disease cases.
  • Statistical comparison of granuloma frequency across the groups.

Main Results:

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  • Granulomas were identified in 10% of HCV cases, versus 2% in HBV and 2% in alcohol-induced liver disease.
  • Granulomas were significantly more frequent in HCV (p<0.001).
  • In 50% of HCV cases with granulomas, an alternative etiology was identified, yet granulomas remained significantly more common in HCV even after exclusion.

Conclusions:

  • Granulomas are more frequent in Hepatitis C patients.
  • In cases of co-occurring granulomas and Hepatitis C, alternative causes must be investigated.
  • The presence of granulomas in HCV necessitates a search for other potential etiologies before attributing them solely to HCV.