 In this study, we found that all sort of colitis patients had similar incidences of colorectal cancer as compared to the general population, regardless of whether they had primary sclerosis colonitis. However, all sort of colitis patients with primary sclerosis colonitis had significantly higher incidences of biliary cancer than those without, or in the general population. This suggests that all sort of colitis patients with primary sclerosis colonitis are at greater risk for developing biliary cancer. This article was authored by Unhaio, Yeezy Kim, Minju Kim, and others.