Colon Colon Colon: Ulcerative Colitis, Partial Treatment Response By Dr. Paul M. Choi Colon 12 May 2012 Hits: 2228 Share: Facebook Twitter Google+ 40 year old with a 10 year history of ulcerative colitis on mesalamine maintenance therapy without active bowel symptom. There was patchy areas of colitis noted despite therapy. Prev Next