Abstract: | Objective. We report a hypogammaglobulinemic patient with a destructive oligoarticular arthritis, whose synovial fluid cultures were repeatedly sterile. Methods and Results. We identified a Ureaplasma urealyticum infection in his affected joints, using a polymerase chain reaction (PCR) assay. Conclusion. The PCR technique promises to be extremely valuable in the rapid and specific diagnosis of infectious arthritis. |