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Results 1 - 1 of 1 for Crohn disease OR ulcer OR aphthous ulcer
  1. Surgery for Crohn's Disease Video (Crohn's & Colitis Foundation of America)  
    ... called peritonitis . Fistula Inflammation can cause sores, or ulcers, to form in the inside wall of the intestines or other organs. Sometimes, these ulcers can extend through the entire thickness of the ...