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Ulcerative colitis

Ulcerative colitis is categorized according to location:

• Proctitis involves only the rectum
• Proctosigmoiditis affects the rectum and sigmoid colon
• Left-sided colitis encompasses the entire left side of the large intestine
• Pancolitis inflames the entire colon

Revision

Last reviewed 10/29/2012 by George F. Longstreth, MD, Department of Gastroenterology, Kaiser Permanente Medical Care Program, San Diego, California. A.D.A.M. Health Solutions, Ebix, Inc., Editorial Team: David Zieve, MD, MHA, David R. Eltz, and Stephanie Slon.

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