CEACAM5 and metastatic malignant neoplasm in the lymph nodes: The evaluation identified 12 of the features as most important, including tumor size and number, surgical extent, lymph node metastasis, hepatitis B surface antigen (HBsAg), AFP, CA19-9, CEA, albumin, platelet count, diabetes mellitus, and cholelithiasis (Tables 1, 2).