How is human leukocyte antigen (HLA) B27–associated inflammatory bowel disease (IBD) diagnosed?

Updated: Apr 09, 2021
  • Author: Huy D Nguyen, MD, MBA; Chief Editor: Andrew A Dahl, MD, FACS  more...
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Radiograph findings of involved peripheral joints are usually normal except for soft tissue swelling. An occasional patient with recurrent disease may show small bony erosions and joint space narrowing. Spine films show changes indistinguishable from ankylosing spondylitis. Blood work, including white blood cell (WBC) count, red blood cell (RBC) count, and erythrocyte sedimentation rate, usually reflect the intestinal disease.

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