Persistent urticarial eruption preceding systemic features of adult‐onset Still's disease: A case report

Adult-onset Still's disease (AOSD) is a rare autoinflammatory systemic disorder classically characterised by inflammatory polyarthritis, daily fevers and a transient asymptomatic salmon-pink maculopapular rash that typically arises with the onset of fevers. We report a case of AOSD presenting with a severely pruritic urticarial eruption starting 6 weeks prior to the onset of fever and arthritis and complicated by macrophage activation syndrome. This case highlights the importance of early recognition of diverse cutaneous manifestations of AOSD to facilitate timely diagnosis and treatment to improve disease outcomes.