What is the role of CT scanning in the diagnosis of Crohn disease?

Updated: Jul 26, 2019
  • Author: Leyla J Ghazi, MD; Chief Editor: Praveen K Roy, MD, AGAF  more...
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Answer

Computed tomography (CT) scanning is helpful in—and considered the imaging technique of choice for—the assessment of extramural complications as well as hepatobiliary and renal complications in adults and children. [65, 68, 69, 70]  It may show bowel wall thickening, bowel obstruction, mesenteric edema, abscesses, or fistulae (see the image below).

Active small bowel inflammation in a patient with Active small bowel inflammation in a patient with Crohn disease. This CT scan demonstrates small bowel wall thickening, mesenteric inflammatory stranding, and mesenteric adenopathy.

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