[Chronic juvenile arthritis as a form of presentation of hypogammaglobulinemia].

A seven years old boy with an hypogammaglobulinemia associated to a pauciarticular chronical juvenile arthritis, in which immunitary deficit diagnostic was made investigating his articular disease, is presented. Clinic, immunological screening, therapy and ulterior evolution with a two year substitutive immunoglobulin treatment are discussed. Authors also revise some aspects of these two diseases association.