CEACAM5 and metastatic malignant neoplasm in the lymph nodes: We also found that the levels of CEA, CA 125, and CYFRA 21‐1 differed significantly based on whether patients had distant metastases (P = 0.049), based on gender (P = 0.023), and based on whether patients had lymph node metastases (P = 0.022), respectively.