Value of Serum Carbohydrate Antigen 19-9 and Carcinoembryonic Antigen in Evaluating Severity and Prognosis of Connective Tissue Disease-Associated Interstitial Lung Disease

摘要

Objectives This study aims to detect serum carcinoembryonic antigen (CEA) and carbohydrate antigen 19-9 (CA 19-9) levels in connective tissue disease-associated interstitial lung disease (CTD-ILD) patients and to demonstrate their values in evaluating the severity and prognosis of CTD-ILD.