CEACAM5 and lymphangioma: In solitary LM group, the independent prognostic factors were: right-sided primary tumor (HR = 1.724, 95%CI 1.167–2.546, p = 0.006), preoperative pulmonary metastasis (HR = 1.915, 95%CI 1.179–3.109, p = 0.009), RAS mutation (HR = 1.942, 95%CI 1.374–2.744, p = 0.000), preoperative CEA ≥ 200 ng/ml (HR = 4.444, 95%CI 2.071–9.536, p = 0.000), preoperative CA19-9 ≥ 50 IU/ml (HR = 2.289, 95%CI 1.593–3.289, p = 0.000).