Adult-onset Still’s disease (AOSD) is a rare clinical entity with unknown etiology, characterized by arthritis, fever, evanescent rash and other systemic presentations. This report described a 45-year-old male who presented with sore throat, fever, arthritis, evanescent rash, raised liver enzymes and hyperferritinemia. He was diagnosed to have AOSD based on Yamuguchi criteria after the exclusion of other potential diagnoses. The patient partially responded to combined celecoxib and prednisolone. He was also prescribed methotrexate and his symptoms improved.

Adult-onset Still’s disease (AOSD) is a rare clinical entity with unknown etiology, characterized by arthritis, fever, evanescent rash and other systemic presentations. This report described a 45-year-old male who presented with sore throat, fever, arthritis, evanescent rash, raised liver enzyme...