RA is a chronic polyarticular inflammatory arthritis that involves not only small joints of the hands and feet but also systemic organs. Pathologic change: chronic synovitis with pannus (血管 翳)formation
Overview Clinical syndrome Slowing down of metabolism Slowing of growth and mental retardation in infants and children Generalized slowing down of organism Deposition of glycosaminoglycans in skin and muscle Reversible with therapy