Tropical pyomyositis in a case of rheumatoid arthritis

Tropical pyomyositis is very rarely associated with rheumatoid arthritis. We report tropical pyomyositis involving gastrocnemius muscle in both the legs with eosinophilia and elevated serum IgG and IgE levels in a case of rheumatoid arthritis. We suggest that the possibility of pyomyositis should be considered in all cases of rheumatoid arthritis presenting with muscle pain, fever and leucocytosis.