Mortality Associated With Development of Squamous Cell Cancer in Patients With Inflammatory Bowel Diseases Receiving Treatment With Thiopurines

Background & Aims Treatment with thiopurines is associated with an increased risk of squamous cell carcinoma of the skin (SCC) in patients with inflammatory bowel diseases (IBD). We studied outcomes of patients with IBD who developed SCC while receiving thiopurine therapy. Methods We conducted a retrospective cohort study of 54,919 patients with IBD followed in the nationwide Veterans Affairs Healthcare System from January 1, 2000, through May...