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then remained stationary thereafter. Biopsy had been done and reported as erosions and chronic inflammation. He denied travel history, nor NSAID usage before that episode. Although no more abdominal pain nor blood in stool were noted after the discharge, he was referred to National Taiwan University Hospital for further management. Colonoscopy was followed in October 2015, which showed only tiny erosions were noted at rectum and no more ulcers at the terminal ileum and ascending colon. Unexpected findings during the colonoscopy were the polypoid lesions at the anal area (Fig. A and B). What is your diagnosis for these polypoid lesions? And what kind of hint did they provide for you? Question: A 25-year-old man suffered from abdominal pain and fever in June 2015. He was admitted to the hospital nearby his home, where abdominal CT was done and showed the ascending and transverse colon colitis. Blood in stool was noted in July 2015. Therefore, colonoscopy was done and which disclosed ulcers at the terminal ileum and ascending colon. He lost 2.5 kg during that 1 month

Polypoid lesions at the anal canal: what do they hint?