INCREASED RAHA TITER AND INTERLEUKIN-6 LEVELS IN THE SYNOVIAL-FLUID IN A PATIENT WITH POLYMYALGIA-RHEUMATICA

We report a patient with polymyalgia rheumatica (PMR) accompanied by a n increased Rheumatoid Arthritis Hemagglutinin Test (RAHA) titer and i nterleukin-6 level in the synovial fluid. A 60-year-old female was adm itted because of polymyalgia, a body temperature of 39.2-degrees-C, an d an erythrocyte sedimentation rate increased to 94 mm/h. Since a musc le biopsy failed to show a specific finding, she was diagnosed as PMR. The titer of RAHA and the interleukin-6 level were increased only in the synovial fluid; prednisolone treatment decreased both. The present case raised the possibility that a similar mechanism in rheumatoid ar thritis may involve the development of synovitis in PMR.