Pneumocyte Biomarkers KL-6 and Surfactant Protein D Reflect the Distinct Findings of High-Resolution Computed Tomography in Nonspecific Interstitial Pneumonia

Abstract

The results indicate that serum levels of KL-6 in NSIP reflect the overall extent of interstitial lesions, which include both inflammatory and fibrotic lesions, while the levels of SP-D mainly reflect the extent of inflammatory lesions.