Rheumatic manifestations of hepatitis C infection.

With the advent of serological testing for the hepatitis C virus (HCV) clinicians can better recognize disorders associated with a subset of non-A, non-B hepatitis. As with hepatitis A and B virus infections, HCV disease may be associated with arthritis. Three patients with atypical arthritis who were subsequently discovered to have HCV infection are described. HCV infection should be considered in the differential diagnosis in patients with atypical arthritis.