Medically reviewed by Doru Paul, MD Key Takeaways Blood tests are sometimes used to help confirm or rule out conditions causing back pain.A complete blood count (CBC) may show infections or ...

There is no specific “diagnostic” or pathognomonic laboratory marker for ankylosing spondylitis/axial spondyloarthritis (AS/axSpA), and diagnosis is based on clinical history, physical examination and ...

The HLA-B27 genetic marker is known to be associated with increased risk for various arthropathies, including JIA. Whether the genetic marker's presence has prognostic value has been uncertain. In ...

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 ...