Figure 1.

Lifetime incidence of various cancers associated with primary sclerosing cholangitis and their respective risks compared with the general population. Estimations of lifetime incidence are made from limited available data (predominantly based on 10- to 30-year longitudinal studies), and thus may often underestimate true lifetime risk. ¹The risk in patients with PSC-IBD (not PSC alone) is 4× the risk in patients with UC alone and 10× the risk in the general population. PSC: Primary sclerosing cholangitis; PSC-IBD: Inflammatory bowel disease co-existing with primary sclerosing cholangitis; UC: Ulcerative colitis.