Objective To investigate the diagnostic value of serum HE4,NSE and CYFRA21-1 levels for lung cancer.Methods The serum HE4,NSE and CYFRA21-1 levels in 88 patients with lung cancer and 70 patients with benign lung disease patients and 50 healthy control was detected by using chemoluminescenee method.Results The serum HE4,NSE and CYFRA21-1 levels in lung cancer were significantly higher than that in benign lung disease and the healthy control group( P < 0.05).The highest sensitivity of serum tumor markers in a...