Anti-Synthetase Syndrome in ANA and anti-JO-1 Negative Patients Presenting with Idiopathic Interstitial Pneumonia

摘要

ObjectivesTo describe the clinical features of patients who presented with “idiopathic” interstitial pneumonia but who were ultimately diagnosed with anti-synthetase syndrome based on clinical features and positive anti-PL-7 or -PL-12 antibodies.