Curbside Consultation of the Colon: 49 Clinical Questions

Brooks D. Cash, MD, FACP, CDR, MC, USN

Question 8: What Do I Need To Tell My Inflammatory Bowel Disease Patients About Their Risk For Colon Cancer And How Should I Perform Surveillance Colonoscopy In These Patients? (continued)

Francis A. Farraye, MD, MSc

Patients with long-standing ulcerative colitis are at an increased risk for developing dysplasia and CRC. This risk approaches 8% by 20 years and 18% by 30 years.1 More recent data suggest that the risk of CRC in patients with ulcerative colitis may be lower than previously reported.2 Patients with extensive Crohn’s colitis also have an increased risk of CRC and should undergo regular surveillance. A number of factors are associated with an increased risk of developing CRC in inflammatory bowel disease (IBD). These include a longer duration of colitis, greater extent of colonic…