ALB and metastatic malignant neoplasm in the lymph nodes: The analysis of prognostic factors of OS included also: age (older than 65 years), ECOG performance status, primary tumor location, synchronous metastases, number of metastatic sites, hepatic metastasis, pulmonary metastases, lymph node metastases, level of Albumin and level of serum carbohydrate antigen 19–9 and three domains from the EORTC Quality of Life QLQC-30 questionnaire.