Value of combined detection of serum tumor markers in the diagnosis and pathological classification of lung cancer
Objective:To evaluate the clinical value of serum tumor markers in the diagnosis and classification of lung cancer.Methods:A total of 119 patients with lung cancer admitted to the Department of Respiratory and Critical Care Medicine of the First Affiliated Hospital of Bengbu Medical College from January to October 2023 were selected as the study group,and 54 patients with benign lung tumors in the same period were selected as the control group.The con-tent of serum tumor markers carcinoembryonic antigen(CEA),squamous cell carcinoma antigen(SCC),cytokeratin fragment(CYFRA21-1),neuron-specific enolase(NSE)and gastrin-releasing peptide precursor(ProGRP)in each group was detected and the diagnostic efficacy was analyzed.Results:The serum tumor markers in the study group were higher than those in control group(P<0.05).The CEA content of adenocarcinoma group was higher than that of squamous cell carcinoma group and small cell carcinoma group(P<0.05),the contents of SCC and CYFRA21-1 in squamous cell carcinoma group were higher than those in the adenocarcinoma group and small cell carcinoma group(P<0.05),the levels of NSE and ProGRP in the small cell carcinoma group were higher than those in the adenocarcinoma group and squamous cell carcinoma group(P<0.05).The AUC of CEA detection for adenocarcinoma was 0.987,that of SCC and CYFRA21-1 detection for squamous cell carcinoma was 0.994 and 0.957,and that of NSE and ProGRP detection for small cell carcinoma was 0.923 and 0.944.The AUC(0.991,0.997,0.996)of the combined tests for adenocarcinoma,squamous cell carcinoma and small cell carcinoma were higher than those in separate tests(P<0.05).Conclusion:Serum tumor markers have a high guiding value in the definite diagnosis of lung cancer and the differ-entiation of pathological types.CEA has a high diagnostic value in adenocarcinoma,as well as SCC and CYFRA21-1 in squamous cell carcinoma,and NSE and ProGRP in small cell carcinoma.The combination of the above serum markers can improve the diagnostic efficiency of different pathological types of lung cancer.