TY - CHAP M1 - Book, Section TI - Juvenile Idiopathic Arthritis A1 - Crayne, Courtney B. A1 - Cron, Randy Q. A2 - Stone, John H. PY - 2021 T2 - Current Diagnosis & Treatment: Rheumatology, 4e AB - ESSENTIALS OF DIAGNOSISJuvenile idiopathic arthritis (JIA) is a heterogeneous group of diseases which describe chronic inflammatory arthritis in a child lasting longer than 6 weeks with onset prior to 16 years of age.Disease subtypes vary with respect to clinical presentation, extra-articular symptoms, and serology.There is no specific laboratory test or imaging modality that can confirm or exclude a diagnosis of JIA.Complications of JIA include uveitis, macrophage activation syndrome (MAS), contractures, and growth abnormalities.Treatment varies with respect to subtype classification. SN - PB - McGraw Hill CY - New York, NY Y2 - 2024/03/29 UR - accessmedicine.mhmedical.com/content.aspx?aid=1180196421 ER -