What factors determine the clinical presentation of Crohn disease?

Updated: Jul 26, 2019
  • Author: Leyla J Ghazi, MD; Chief Editor: Praveen K Roy, MD, AGAF  more...
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The patient’s clinical presentation is primarily determined by the location and extent of the disease. Although any area of the GI system may be affected in patients with Crohn disease, the most common site of the chronic inflammatory process is the ileocecal region, followed by the colon (about 20%), the small intestine alone (about 30%), the stomach (rarely), and the mouth. [8] The esophagus is very rarely involved. [1]

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