Clinical characteristics of dermatomyosits/polymyositis associated interstitial lung disease according to the autoantibody.

Background: Dermatomyositis (DM) and polymyositis (PM) often have association with interstitial lung disease (ILD) which have disease specific autoantibody.

Methodology: We reviewed medical records of DM/PM associated ILD from January 2000 to December 2017 according to the autoantibody.

Result: We identified 52 patients, of whom 30 were antibody negative, 18 had anti aminoacyl-tRNA synthetases (ARS) antibodies and 4 had anti melanoma differentiation-associated gene (MDA)-5 antibody.