For instance, the biomarkers cytokeratin 19 fragments (CYFRA 21‐1), tissue polypeptide antigen (TPA‐M), squamous cell carcinoma antigen (SCCA), and carcinoembryonic antigen (CEA) were evaluated in the serum of patients with laryngeal carcinoma and a control group of healthy volunteers [7]. This evidence concerns the gene CEACAM5 and laryngeal carcinoma.