Abdominal aortic aneurysm simulating ankylosing spondylitis.
D000328:Adult; D001012:Aorta, Abdominal; D001014:Aortic Aneurysm / Q000175:diagnosis*; D003937:Diagnosis, Differential; D006801:Humans; D008297:Male; D013167:Spondylitis, Ankylosing / Q000175:diagnosis*