What is the most common cause of acute terminal ileitis in inflammatory bowel disease (IBD)?

Updated: Apr 10, 2020
  • Author: William A Rowe, MD; Chief Editor: BS Anand, MD  more...
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As many as 50-80% of cases of acute terminal ileitis may be due to Yersinia enterocolitis infections. This produces a picture of pseudoappendicitis. As with IBD, yersiniosis has a high frequency of secondary manifestations, such as erythema nodosum and monoarticular arthritis. Thus, in the right clinical setting, a suspicion for Yersinia should be considered.

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