How is Crohn disease diagnosed?

Updated: Jul 26, 2019
  • Author: Leyla J Ghazi, MD; Chief Editor: Praveen K Roy, MD, AGAF  more...
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Crohn disease is initially diagnosed on the basis of a combination of clinical, laboratory, histologic, and radiologic findings. Laboratory study results are generally nonspecific but may be helpful in supporting the diagnosis and managing the disease. Serologic studies are sometimes used to facilitate differentiation of Crohn disease from ulcerative colitis or inflammatory bowel disease (IBD) of undetermined type.

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