What is the significance of a finding of uveitis in ankylosing spondylitis (AS)?

Updated: Feb 02, 2021
  • Author: Lawrence H Brent, MD; Chief Editor: Herbert S Diamond, MD  more...
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Uveitis (also called iritis or iridocyclitis) is the most common extra-articular manifestation of AS, occurring in 20-30% of patients. [78, 79] Of all patients with acute anterior uveitis, 30-50% have or will develop AS. The incidence is much higher in individuals who are HLA-B27 positive (84-90%). Patients with uveitis may also have or may develop other spondyloarthropathies, including ReA (5-10%), USpA (2-5%), and PsA (< 1%), although this is less common. Isolated inflammatory bowel disease (IBD) is also associated with uveitis.

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