&chief_complaint=Low back pain and stiffness, and chronic pain and swelling of the knees and ankles.

&phys_exam=Tenderness over highlighted areas. Low back and tenderness and swelling of highlighted peripheral joints. 

&cor_dif=Ankylosing Spondylitis,Enteropathic Arthropathy_,

&incor_dif=Gout,Rheumatoid Arthritis,

&review=clinical presentation and differential diagnosis of Spondyloarthropathy