증례 / 만성간질환에 병발한 다발성근염 3예

Polymyositis is characterized by symmetrical proximal muscle weakness, nonsuppurative inflammation of striated skeletal muscle, elevation of muscle enzyme, and abnormality of electromyographical change, but its pathogenesis is not clear. The incidence of polymyositis is low, and that associated with chronic liver disease is rare. Clinical importance of polymyositis associated with chronic liver disease is that it is a reversible disease which can be treated with glucocorticoid. We experienced three cases of polymyositis associated with chronic liver disease which was treated with prednisolone. And we report these cases with a brief review of literature. So, the further study about the influence of chronic liver disease on the polymyositis is warranted.