Pathogenesis, Clinical Spectrum, and Assessment of Spondyloarthritis: A Literature Review Kaiser Gerald Handoyo1, Awalia2* Abstract Spondyloarthritis (SpA) is a family of chronic inflammatory rheumatic diseases that share inflammatory back pain, sacroiliitis, peripheral arthritis, enthesitis, dactylitis, extra-articular involvement, absence of rheumatoid factor, and a strong association with HLA-B27. Its presentation varies