This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Medicine
[{'content': "All the following diseases are associated with HLA B-27 & Uveitis, except: \nSelect and explain. \nA. Behcet's syndrome, B. Psoriasis, C. Ankylosing Spondylitis, D. Reiter's syndrome", 'role': 'user'}, {'content': "Answer: A \nExplanation: Behcet's syndrome is associated with HLA- B5 and HLA-B51. Triad of uveitis, genital ulcers and oral aphthous ulcers.Conditions associated with HLA B27 include:Ankylosing spondylitisReiter's syndromeReactive ahritisPsoriatic ahritisJuvenile rheumatoid ahritisAcute anterior uveitisRef: Harrison's 18/e p2801, 17/e p2132", 'role': 'assistant'}]