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Hypocomplementaemic urticarial vasculitis, interstitial lung disease and hepatitis C
R Y Lin1, C B Caren, H Menikoff
1St Vincent's Hospital, New York, NY 10011, USA.
The British Journal of Dermatology
|May 1, 1995
Summary
Hepatitis C virus infection can manifest as immunological diseases, including urticaria, angio-oedema, and leucocytoclastic vasculitis. This case highlights a potential link between Hepatitis C virus and systemic immune system disorders.
Area of Science:
- Immunology
- Hepatology
- Dermatology
Background:
- Hepatitis C virus (HCV) infection is a significant global health concern.
- HCV is primarily known for causing chronic liver disease.
- Emerging evidence suggests HCV may be associated with extrahepatic manifestations, particularly autoimmune and immune-mediated conditions.
Observation:
- A 42-year-old male presented with persistent urticaria and angio-oedema, responsive to systemic steroids.
- Skin biopsy confirmed leucocytoclastic vasculitis.
- The patient exhibited decreased C4 complement levels, elevated erythrocyte sedimentation rate, and a restrictive pulmonary function pattern with eosinophilia in bronchial lavage fluid.
Findings:
- Serological testing revealed a positive antibody to hepatitis C virus.
- Mild elevation in serum aminotransferase levels was noted.
- The constellation of symptoms and laboratory findings suggests an immune-mediated process linked to HCV infection.
Implications:
- This case underscores the importance of considering HCV infection in patients presenting with unexplained vasculitis and allergic-type reactions.
- Early diagnosis and management of HCV may prevent or mitigate severe extrahepatic manifestations.
- Further research is warranted to elucidate the precise mechanisms underlying HCV-associated immune dysregulation.