CEACAM5 and neoplasm: Univariate analysis revealed that Differentiation (p = 0.038), American Joint Committee on Cancer (AJCC) stage (p = 0.002), Distant metastases (p = 0.000), and Extranodal tumor deposits (p = 0.000) had a significant influence on OS, while carcinoembryonic antigen (CEA) (p = 0.015) and DMRN level (p = 0.030) had significant prognostic value for RFS.