<unk>  <unk>  is a rare inflammatory disorder that affects the entire body (systemic<unk> . The cause of the disorder is unknown (idiopathic). Affected individuals may develop episodes of high, spiking fevers, a pink or salmon colored rash, joint pain, muscle pain, a sore throat and other symptoms associated with systemic inflammatory<unk> . The specific symptoms and frequency of episodes vary from one person to another and the progression of the disorder is difficult to predict. In some individuals, the disorder appears suddenly, disappears almost as quickly and may not return. In other people,<unk>  is a chronic, potentially disabling, condition. Various medications are used to treat individuals with<unk> , affected individuals may respond to therapy differently.<unk>  does not appear to run in families.<unk>  is the<unk>  form of systemic juvenile rheumatoid arthritis (juvenile<unk> 's<unk> . The disorders are name after a British physician who first described systemic juvenile rheumatoid arthritis in the medical literature in 1896. The term<unk><unk> 's<unk> " was first used in the medial literature in 1971, but cases that fit the description of the disorder appear in the medical literature as early as the late 1800s.
Signs & Symptoms
The symptoms, progression and severity of<unk><unk><unk> ’s<unk>  are highly variable from one person to another. Some individuals may only develop one random episode that responds to treatment and resolves within one year. In some cases, a new episode does not occur or does not occur until many years later. Other individuals may develop chronic<unk> , in which episodes come and go, often years apart and with no symptoms in-between episodes.<unk>  other individuals may experience frequent episodes that occur every several weeks or months. Individuals with chronic<unk><unk><unk> ’s<unk>  may have a form predominantly characterized by fever or a form predominantly characterized by joint<unk>  (chronic arthritis). Chronic<unk><unk><unk> ’s<unk>  can potentially cause long-term, severe and disabling complications.
Adult-onset Still's disease
Boutonneuse fever
Relapsing fever
Brazilian purpuric fever
Paratyphoid fever
Lyme disease
Cotton fever
Periodic fever syndrome