[Yersinia arthritis in children]

Clinical and laboratory evaluation of arthritis in 36 children with diagnosed enteric yersiniosis is presented on seven-years' follow-up data. Twenty-eight patients were found to have an active course of the disease developing in cycles with a favourable outcome and no residual effects. In eight cases arthritis took a protracted (up to 8-10 months) or chronic (over 12 months) course which ended in clinical and laboratory remission; in three of the eight cases the clinical picture was similar to that of rheumatoid arthritis, in two of which the diagnosis was not excluded by the morphological study of the synovial biopsy sample.