类风湿关节炎(RA)是一种常见的累及多系统、多器官损害的慢性炎症性疾病。可出现关节骨质的破坏,畸形和滑膜炎。随着患者诊治病程的延长,病情反复加重,临床中出现肺间质病变(ILD)的患者增多。然而,RA出现ILD具体原因不详,多考虑为自身免疫异常,自身抗体形成免疫复合物沉积,引起肺血管炎性 Rheumatoid arthritis (RA) is a common chronic inflammatory disease that affects multiple systems and multiple organ damage. There may be bone destruction joints, deformities and synovitis. With the extension of diagnosis and treatment of patients, the disease repeatedly increased clinical manifestations of interstitial lung disease (ILD) patients increased. However, specific causes of RA appear ILD is unknown, and more consideration for autoimmune disorders, autoantibodies to form immune complex deposition, causing pulmonary vasculitis