CEACAM5 and neoplasm: The mean value of tumor marker in carcinoembryonic antigen (CEA), carbohydrate antigen 19–9 (CA 19–9) and neuron-specific enolase (NSE) were 1.41 ± 0.83, 16.25 ± 31.33 and 21.87 ± 14.64 respectively.