Coexistence of anti‐MDA5 and anti‐PL‐7 in a patient with dermatomyositis: A case report

Abstract Coexisting anti‐MDA5 and anti‐PL‐7 antibodies are extremely rare. Anti‐MDA5 is associated with rapidly progressive interstitial lung disease (RP‐ILD), while anti‐PL‐7 is often associated with chronic or subacute ILD and better outcomes than RP‐ILD. We report a 41‐year‐old woman diagnosed with dermatomyositis (DM)‐associated ILD positive for anti‐MDA5 and anti‐PL‐7.