HLA B-27 has > 90% association with?: (A) Enteropathic, (B) Reactive arthritis, (C) Rheumatoid arthritis, (D) Ankylosing spondylitis
Answer is D. Ans. (d) Ankylosing spondylitis(Ref: Harrison 18th/chapter 325)Prevalence of HLA B27 is 90% in patients with Ankylosing Spondylitis, independent of disease severity.