Ileum Ileum | Colonoscopy in Los Angeles | Los Angeles Gastroenterology Group Ileum: Apthous Ulcer By Dr. Paul M. Choi Ileum | Colonoscopy in Los Angeles | Los Angeles Gastroenterology Group 09 October 2011 Hits: 2609 Share: Facebook Twitter Google+ A small apthous ulcer in the terminal ileum in a middle-aged woman with florid Crohn's colitis. Prev Next