ankylosing spondylitis

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A rheumatic arthritis (spondyloarthropathy, Marie–Strumpell spondylitis, Bechterew's syndrome) involving joints in the spine, which may become almost rigid. Susceptibility is associated with the histocompatibility antigen HLA-B27 and 90% of sufferers have HLA-B27. An additional susceptibility locus has been identified on chromosome 9.

Subjects: Sports and Exercise Medicine.

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