What is spondyloarthritits?

Heterogenous group of chronic inflammatory arthropathies affecting mainly the spine with some peripheral symptoms in enthesis and certian extra-articular sites. Enthesis is distiguishing feature of SPA, associated with HLAB27. Sero - for RF and ANA. Important priniciple if pt comes with pain waking him/ at morining we have inflammatory pain, if we have a swollen finger either arthritis, dactylitis or spondyloarthritis. Here we have spine involvement