What is the involvement of the small intestine in inflammatory bowel disease (IBD)?

Updated: Oct 17, 2017
  • Author: William A Rowe, MD; Chief Editor: BS Anand, MD  more...
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Answer

Approximately 90% of patients with Crohn disease have involvement of the terminal ileum and/or right colon. Pediatric patients are more likely (about 20%) to present with disease limited to the small intestine, although very young children often present with purely colonic disease. Occasionally, gastric or duodenal Crohn disease manifests as seemingly refractory peptic ulcer disease.


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