[Update in Hepatitis C virus associated extrahepatic manifestations]

Area of Science:

• Hepatology
• Immunology
• Virology

Context:

• Hepatitis C virus (HCV) infection presents numerous extra-hepatic manifestations (EHM).
• Despite extensive research, the precise mechanisms linking HCV to EHM remain incompletely understood.
• EHM associated with HCV continue to be a significant clinical concern over 15 years post-virus discovery.

Purpose:

• To review the primary extra-hepatic manifestations associated with Hepatitis C Virus infection.
• To highlight current areas of interest and ongoing research in HCV-associated EHM.
• To discuss the potential impact of emerging therapies on managing these conditions.

Summary:

• Mixed cryoglobulinemia and its vasculitic complications are frequent HCV-associated EHMs.
• Other notable HCV-EHM include chronic fatigue, sicca syndrome, non-insulin-dependent diabetes mellitus, and B-cell lymphoproliferations.
• HCV-related splenic lymphoma with villous lymphocytes and auto-antibody production are also key areas of focus.

Impact:

• Understanding HCV-EHM mechanisms is crucial for developing targeted therapies.
• Anti-CD20 therapy shows promise for managing cryoglobulinemic vasculitis.
• Further research is vital to elucidate the pathogenesis of these complex conditions.