VCAN and non-small cell lung carcinoma: In addition, we evaluated the diagnostic value of plasma versican or plasma exosomal versican in patients with NSCLC, and the findings revealed that both were superior to that of NSE, CEA, CYFRA21-1, and SCC in the diagnosis of NSCLC, and that they were superior to that of NSE and SCC in the diagnosis of NSCLC with metastasis.