Ankylosing Spondylitis:
View cases of ankylosing spondylitis
(snip...) "Ankylosing spondylitis occurs in about 0.15% of white males, is uncommon in blacks, and the male to female ratio is about 10:1 [3]. The peak incidence is between the ages of 15-35 years [5]. Up to 95% of patients with ankylosing spondylitis are HLA-B27 (and 2-20% of persons that are HLA-B27 positive will develop ankylosing spondylitis) [3]. Symptoms of the disorder and typically isolated to the inflammatory spinal disease, but ocular (uveitis or iritis), cardiovascular (aortic insufficiency or dilatation), and pulmonary involvement may also occur [3]." (more...)

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General paper on imaging in AS -

MollyC1i - Riding OutAS