IntroductionAdult-onset Still’s disease, an auto-inflammatory disease, is well described in the literature and tends to respond well to IL-1 blockade. A sub-group of adult patients may present with some of the typical symptoms and findings which are commonly associated with autoinflammatory conditions but may not fulfil the criteria to obtain a specific diagnosis. It has been reported in the literature that these patients may represent an ’undifferentiated systemic autoinflammatory disorder’ and case reports support the use of anakinra as a viable treatment option in this sub-group.
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