HLA B 27 test is usually asked to confirm inflammatory spondylopathy ( ankylosing spondylitis ), and other seronegative arthropathies.
90% of people with ankylosing spondylitis are hla b 27 positive but all hla b 27 positive people won’t develop ankylosing spondylitis. So being positive for hla b 27 should not be seen as diagnostic for any disease type.
Answered2019-01-20 03:18:08
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