RT Journal Article SR Electronic T1 Isolated temporomandibular synovitis as unique presentation of juvenile idiopathic arthritis. JF The Journal of Rheumatology JO J Rheumatol FD The Journal of Rheumatology SP 1689 OP 1692 VO 28 IS 7 A1 G Martini A1 U Bacciliero A1 A Tregnaghi A1 M C Montesco A1 F Zulian YR 2001 UL http://www.jrheum.org/content/28/7/1689.abstract AB Temporomandibular joint (TMJ) involvement is quite frequent in juvenile idiopathic arthritis (JIA). We describe a 15-year-old girl with isolated TMJ arthritis presenting as a unique manifestation of JIA, and its successful treatment. She underwent arthroscopic synovectomy followed by intraarticular steroid injection. Early use of synovectomy and intraarticular steroids in TMJ arthritis may reduce pain, improve jaw function, and prevent irreversible deformities.