CEACAM5 and neoplasm: Age (p = 0.284), ECOG status (p = 0.805), tumour location (p = 0.145), previous systemic chemotherapy (p = 0.472), uni- or bilobar disease (p = 0.106), CEA and CA 19-9 before (p = 0.591;0.393) and after (p = 0.037;0.583) the treatment did not prove to be statistically significant predictors of survival.