<prompt> Characteristic feature of stills disease:Prominent kidney involvementRashesPositive Rheumatoid factorNeutropenia  <response>: Ans. is b Rashes Stills disease is a variant of rheumatoid commonly occurring in adults in 20s and 30s patients characteristics clinical features are:High spiking fever often upto 40deg C.Sore throatEvanescent salmon coloured non pruritic rash, seen on chest abdomenLymphadenopathyPericardial effusionWrist joint involvementChances are that you might confuse it with Feltys syndrome so I am giving the important features of both these conditions togetherStills ds Feltvs syndromeRheumatoid arthritis Rheumatoid arthritisSplenomegaly SplenomegalyLeucocytosis NeutropeniaRash High titres of rheumatoid factorRheumatoid factor is usually not present 