title: Altered Bowel Movements: A Rare Rectal Lesion.
authors.affiliation: Section of Gastroenterology, Hepatology and Nutrition, Department of Medicine, The University of Chicago Medicine and Biological Sciences, Chicago, Illinois.
authors.forename: Yutaka
authors.initials: Y
authors.lastname: Tomizawa
authors.affiliation: Section of Gastrointestinal Pathology, Department of Pathology, The University of Chicago Medicine and Biological Sciences, Chicago, Illinois.
authors.forename: Lindsay
authors.initials: L
authors.lastname: Alpert
authors.affiliation: Center for Endoscopic Research and Therapeutics, Department of Medicine, The University of Chicago Medicine and Biological Sciences, Chicago, Illinois.
authors.forename: Uzma D
authors.initials: UD
authors.lastname: Siddiqui
mesh_terms: D001706:Biopsy; D002828:Choristoma / Q000150:complications* / Q000175:diagnosis / Q000601:surgery; D003113:Colonoscopy; D003672:Defecation; D003967:Diarrhea / Q000209:etiology* / Q000503:physiopathology; D019160:Endosonography; D006801:Humans; D008297:Male; D008875:Middle Aged; D012002:Rectal Diseases / Q000150:complications* / Q000175:diagnosis / Q000601:surgery; D012007:Rectum / Q000473:pathology / Q000503:physiopathology / Q000601:surgery*; D013270:Stomach