label: Systemic Juvenile Idiopathic Arthritis
label_lc: systemic juvenile idiopathic arthritis
description: A category of juvenile idiopathic arthritis defined by the presence of arthritis and high fevers, and accompanied by at least 2 of the following systemic features: lymphadenopathy, organomegaly, rash, or serositis. Macrophage activation syndrome is a well known complication.