BTG3 and oligoarticular juvenile idiopathic arthritis: The most common ILAR subtype with TMJ synovitis was oligoarticular JIA 26(46%) (18 ANA+), followed by polyarticular rheumatoid factor(RF)-negative 12(21%), enthesitis-related 6(11%), polyarticular RF-positive 4(7%), systemic 4(7%), psoriatic 3(5%) and inflammatory bowel disease-related 2(4%).