Feber, serositis, vaskulitis, myalgi/ myositis, arthralgi/ arthritis, positiv ANA, forhøjet ESR, eosinofili og leukocytose.
A symptom complex has been reported which may include some or all of the following: fever, serositis, vasculitis, myalgia/ myositis, arthralgia/ arthritis, a positive ANA, elevated ESR, eosinophilia, and leukocytosis.