Adult-onset Still's disease
is an inflammatory condition characterized by high fevers, rash, sore throat, and joint pain. As it progresses, adult-onset Still's disease may lead to chronic arthritis and other complications. Still's disease was named after an English doctor named George Still, who described the condition in children in 1896. Still's disease which occurs in children (those under the age of 16) is now known as systemic onset juvenile rheumatoid arthritis (JRA). In 1971, the term "adult Still's disease" was used to describe adults who had a condition similar to systemic onset JRA. The cause of adult-onset Still's disease is unknown. No risk factors for the disease have been identified. There's no cure for adult-onset Still's disease; however, treatment may offer symptom relief and help prevent complications.
Source: Genetic and Rare Diseases Information Center (GARD), supported by ORDR-NCATS and NHGRI.