An atlas of the nonpolypoid colorectal neoplasms in inflammatory bowel disease.

The role of endoscopy in the management of patients with inflammatory bowel disease (IBD) is well established. However, recent data have shown significant limitations in the effectiveness of colonoscopy in preventing colorectal cancer (CRC) in patients with IBD colitis. The current standard random biopsy seemed largely ineffective in detecting nonpolypoid colorectal neoplasms. Data using chromoendoscopy with targeted biopsy, however, showed a significant improvement when used to detect dysplasia, the best predictor of CRC risk. This article provides a useful and organized series of images of the detection, diagnosis and management of the superficial elevated, flat, and depressed colorectal neoplasms in IBD patients, and provides a technical guide for the use of chromoendoscopy with targeted biopsy.