It is a painful chronic systemic autoimmune disease characterized by inflammatory polyarthritis that affects peripheral joints mainly small joints of hands and feet (metacarpophalangeal joints, interphalangeal joints). EPIDEMIOLOGY AND CAUSES CLINICAL FEATURES AND PATHOPHYSIOLOGY Joint swelling and pain RA shows characteristic symmetrical pattern of joint involvement The proximal interphalangeal joints and metacarpophalangeal joints are often … Continue reading Rheumatoid Arthritis