obsolete_juvenile idiopathic arthritis true true SNOMEDCT:410796000 NCIt:C27179 Ele Holloway http://purl.obolibrary.org/obo/MONDO_0011429 Juvenile idiopathic arthritis (JIA), also known as juvenile rheumatoid arthritis (JRA), is the most common form of arthritis in children and adolescents. (Juvenile in this context refers to an onset before age 16, idiopathic refers to a condition with no defined cause, and arthritis is the inflammation of the synovium of a joint.) JIA is an autoimmune, non-infective, inflammatory joint disease of more than 6 weeks duration in children less than 16 years of age. The disease commonly occurs in children from the ages of 7 to 12, but it may occur in adolescents as old as 15 years of age, as well as in infants. It is a subset of arthritis seen in childhood, which may be transient and self-limited or chronic. It differs significantly from arthritis commonly seen in adults (osteoarthritis, rheumatoid arthritis), and other types of arthritis that can present in childhood which are chronic conditions (e.g. psoriatic arthritis and ankylosing spondylitis). Aetiopathology is similar to rheumatoid arthritis but with less marked cartilage erosion, and joint instability and absent rheumatoid factor. JIA affects approximately 1 in 1,000 children in any given year, with about 1 in 10,000 having a more severe form. Juvenile rheumatoid arthritis (disorder) Tomasz Adamusiak Juvenile rheumatoid arthritis NOS (disorder) 3.88.0 breast myoepithelial carcinoma Juvenile rheumatoid a. Juvenile chronic arthritis (disorder) Sirarat Sarntivijai UMLS:C0553662 chronic childhood arthritis juvenile arthritis SNOMEDCT:410795001 Juvenile idiopathic arthritis (disorder) MONDO:0011429 MESH:D001171 NCIt:C114357 Juvenile rheumatoid arthritis, NOS Arthritis (juvenile idiopathic) Juvenile Rheumatoid Arthritis ICD10:M08 Replaced by Mondo term MONDO_0011429, with which this term was previously merged. Use: http://purl.obolibrary.org/obo/MONDO_0011429 DOID:676 arthritis, juvenile rheumatoid MedDRA:10059176 Wikipedia:Juvenile_idiopathic_arthritis Juvenile seropositive polyarthritis