<unk>  (also often referred to as axSpA) is a chronic, autoinflammatory disease predominantly affecting the<unk>  skeleton (sacroiliac joints and spine). The most known member of the<unk>  disease family is ankylosing spondylitis.<unk>  is an umbrella term that was introduced in 2009 to characterize a diverse disease family that share clinical and genetic features, such as the involvement of the<unk>  skeleton. The expression was introduced in order to unify (1) less severe forms of spondylitis, (2) the early phase of ankylosing spondylitis as well as (3) ankylosing spondylitis itself into one term.
Axial spondyloarthritis
Oligoarthritis
Ankylosing spondylitis
Osteoarthritis
Enteropathic arthropathy
Jaccoud arthropathy
Hypertrophic osteoarthropathy
Spondyloarthropathy