A Case of Successful Immunosuppressive Therapy for Interstitial Lung Disease Associated with Sjögren's Syndrome With Double-positive Anti-SS-A and Anti-centromere Antibodies.

Sjögren's syndrome (SS) can present with extraglandular organs, such as interstitial lung disease (ILD). Anti-SS-A antibody is frequently found in SS cases, whereas anti-centromere antibody (ACA) is detected in some SS cases. Notably, the anti-SS-A and ACA double-positive cases exhibited distinct features with a higher prevalence of ILD. However, there have so far been no reports on the treatment of ILD in anti-SS-A and ACA double-positive cases. We herein present a case of ILD with anti-SS-A and ACA double-positive SS that was successfully treated with immunosuppressive therapy. Our case suggests the potential efficacy of immunosuppressive therapy for this poorly understood condition.