Tumor marker analysis revealed normal levels of carcinoembryonic antigen (CEA) at 1.4 ng/mL (reference: 0-5 ng/mL), carbohydrate antigen 19-9 (CA19-9) at 5 U/mL (reference: <37 U/mL), and soluble interleukin-2 receptor (sIL-2R) at 446 U/mL (reference: 156.6-474 U/mL), all within their respective reference ranges. This evidence concerns the gene CEACAM5 and neoplasm.