Lead pipe bowel


This case demonstrates classical lead pipe appearance associated with chronic ulcerative colitis. The normal haustral pattern is to have the most haustra in the right colon with a decreasing amount as one moves distally. It may be normal to have relatively few haustra in the descending colon and sigmoid, and it is important not to overcall the lead-pipe appearance. However, when features are this clear cut, the diagnosis can be made with confidence.