Adult-onset Still's disease (AOSD) is a form of Still's disease, a rare systemic autoinflammatory disease characterized by the classic triad of persistent high spiking fevers, joint pain, and a distinctive salmon-colored bumpy rash. The disease is considered a diagnosis of exclusion.Specialty: Rheumatology.
Adult Still disease (ASD) is a rare illness that causes high fevers, rash, and joint pain. It may lead to long-term (chronic) arthritis. Adult Still disease is a severe version of juvenile idiopathic arthritis (JIA), which occurs in children. Adults can have the same condition, although it is much less common.
(See "Treatment of adult Still's disease".) ETIOLOGY. The etiology of adult Still's disease (ASD) is unknown; both genetic factors and a variety of infectious triggers have been suggested as important, but there has been no proof of an infectious etiology, and the evidence supporting a .