IL13RA1 and metastatic malignant neoplasm in the lymph nodes: Age of patients, serum level of CA19-9, tumor stage, T category, lymph node metastasis, distant metastasis, histologic type, histologic grade, Nu-IL4Rα, Cy-IL4Rα, Nu-IL13Rα1, and Cy-IL13Rα1 were included in multivariate analysis.