This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Medicine
HLA-B27 is typically associated with: 
Select and explain. 
A. Rheumatoid Ahritis, B. Ankylosing spondylitis, C. Sjogren's syndrome, D. Scleroderma
B: Ankylosing spondylitis
Answer: B: Ankylosing spondylitis 
Explanation: Answer is B i.e. (Ankylosing spondylitis): HLA B27 is typically associated with seronegative spondyloahropathies like Ankylosing Spondylitis Conditions associated with HLA B27 include:Q Ankylosing sponciylitisQ Reiter's syndromeQ Reactive ahritisQ (yersonia, salmonella, gonococcus) Psoriatic ahritisQ Juvenile rheumatoid ahritisQ (not rheumatoid ahritis) Acute anterior uveitis.Q