The term ‘‘juvenile rheumatoid arthritis’’(JRA) describes a heterogeneous group of chronic
inflammatory arthritides, that begin in childhood and are quite distinct from adult rheumatoid …

Objective To develop treatment recommendations for children with juvenile idiopathic arthritis
manifesting as non‐systemic polyarthritis, sacroiliitis, or enthesitis. Methods The Patient/…

Objective Macrophage activation syndrome is characterized by an overwhelming inflammatory
reaction driven by excessive expansion of T cells and hemophagocytic macrophages. …

Objective To develop recommendations for the screening, monitoring, and treatment of
uveitis in children with juvenile idiopathic arthritis ( JIA ). Methods Pediatric rheumatologists, …

Objectives To assess natural killer (NK) and cytotoxic functions in patients with systemic-onset
juvenile rheumatoid arthrithis (soJRA) complicated by macrophage activation syndrome (…

Objective Renal involvement in systemic lupus erythematosus (SLE) is associated with poor
prognosis. Currently available renal biomarkers are relatively insensitive and nonspecific for …

Objective To examine the measurement characteristics of the Childhood Myositis Assessment
Scale (CMAS) in children with juvenile idiopathic inflammatory myopathy (juvenile IIM), …

Macrophage activation syndrome (MAS) has been reported in association with many
rheumatic diseases, most commonly in systemic juvenile rheumatoid arthritis (sJRA). Clinically, …

Objective To develop, validate, and determine the measurement characteristics of a
quantitative tool for assessing the severity of muscle involvement in children with idiopathic …

Objective Juvenile fibromyalgia syndrome (FMS) is a chronic musculoskeletal pain disorder
in children and adolescents for which there are no evidence‐based treatments. The …