Adult-onset Still's disease presenting with aseptic meningitis as the first symptom in an elderly patient

摘要

Highlights?Neutrophilic meningitis is rarely observed in Adult onset Still's disease (AOSD).?AOSD-related meningitis has been observed in the AOSD course of young adults.?An elderly man showed neutrophilic meningitis as a first symptom of AOSD.?First-line therapy with steroid for bacterial meningitis complicated the diagnosis.?Hyperferritinemia led to the correct diagnosis of AOSD and AOSD-related meningitis.