Cytokine levels in persistent skin lesions of adult-onset Still disease

To the Editor: Adult-onset Still disease (AOSD) is an inflammatory disease characterized by fever, polyarthritis, and skin inflammation, with increased serum levels of interferon-γ (IFN-γ), interleukin 1β (IL-1β), IL-18, IL-6, tumor necrosis factor-α, IL-8, IL-2 receptor, C-X-C motif chemokine 10, and C-X-C motif chemokine 13 (CXCL13).1 The cutaneous manifestations of AOSD include the classic evanescent skin eruption (ESE) and atypical persistent skin eruptions (APSEs), the latter possibly being related to more severe AOSD forms.

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