TY - JOUR T1 - Sternoclavicular Joint Swelling in a Patient with Rheumatoid Arthritis JF - The Journal of Rheumatology JO - J Rheumatol SP - 2074 LP - 2075 DO - 10.3899/jrheum.160401 VL - 43 IS - 11 AU - HIROYUKI NAKAMURA AU - YUHEI SHIBATA AU - TSUYOSHI TAKEDA Y1 - 2016/11/01 UR - http://www.jrheum.org/content/43/11/2074.abstract N2 - The sternoclavicular joint is a diarthrodial joint that can be involved in rheumatoid arthritis (RA), and is detectable by ultrasound (US) examination in 15% of patients with RA1. Methotrexate-related lymphoproliferative disorder (MTX-LPD) occurs in extranodal sites in about 40%–50% of the affected patients2; however, intraarticular MTX-LPD is a very rare manifestation with only 1 case report occurring in the knee joint3 … ER -