Spontaneous Remission in a Patient with Anti-OJ Autoantibodies-positive Anti-synthetase Syndrome Following SARS-CoV-2 Infection and mRNA Vaccination: A Case Report.

Anti-synthetase syndrome (ASyS) is a subset of idiopathic inflammatory myopathies characterized by a triad of myositis, interstitial lung disease, and arthritis. Patients with ASyS are generally treated with glucocorticoids, immunosuppressants, or both. We encountered a 53-year-old woman who developed anti-OJ autoantibodies-positive anti-synthetase syndrome following severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection and Cov-2 messenger RNA (mRNA) vaccination.