50 year old man previously diagnosed with ulcerative colitis. Current exam revealed multiple segments of grossly inflamed mucosa, with intervening "skip" areas which appeared grossly normal and which were normal on biopsy, consistent with Crohn's colitis. This inflamed pedunculated polyp, resembling an adenoma, was located at the transition point between inflamed and non-inflamed segments of colon. The lesion contained no adenomatous elements.