Table 2

Association between hepatitis C virus (HCV) infection and diseases

*HCV infection in 80–90% of cases; †HCV infection in a significant percentage of patients when compared with the general population; suggested but unconfirmed association.
Established association*
    Mixed cryoglobulinaemia (MC) (complete or incomplete MC syndrome)
    Porphyria cutanea tarda
Significant association†
    Autoimmune hepatitis
    B cell non Hodgkin's lymphoma
    Monoclonal gammopathies
Possible association‡
    Chronic polyarthritis
    Sicca syndrome
    Lung fibrosis
    Polyarteritis nodosa
    Thyroiditis/thyroid cancer
    Diabetes mellitus
    Lichen planus
    Mooren corneal ulcers