[Chronic inflammatory rheumatism in children and the HLA B27 antigen].

The characteristics and evolution of 15 HLA B 27 positive children presenting a chronic arthritis have been studied. Most typical was an asymmetric oligoarthritis usually of the lower limbs, particularly the knees, in a boy over 10 years old. This symptomatology resembles juvenile ankylosing spondylitis of peripheral onset. Follow up is not yet long énough to allow definite assimilation.