On this occasion, tumor markers have been reported to aid the diagnosis of malignancy, such as carcinoembryonic antigen (CEA), carbohydrate antigen 15-3 (CA15-3), carbohydrate antigen 125 (CA125), and cytokeratin 19 fragment (CYFRA 21-1) [8]. This evidence concerns the gene CEACAM5 and neoplasm.