This study involved 40 patients who met 3 criteria: HLA (human leukocyte antigen)-B27 positivity; less than 3 years of back pain that on history seemed inflammatory; and magnetic resonance imaging ...

Patients with late-onset axial spondyloarthritis (axSpA) are less likely to be positive for human leukocyte antigen B27 (HLA-B27) and have a family history of SpA; they are more likely to present with ...

In patients with spondyloarthritis, onset of common musculoskeletal symptoms such as back pain led to diagnostic delays averaging over 7 years. Onset with extra-musculoskeletal manifestations such as ...

The etiopathogenesis of ankylosing spondylitis (AS) is not fully understood. However, there is strong evidence indicating that genetic factors play a pivotal role in disease susceptibility, and that ...