The expression level of FABP4 was markedly higher in TNM stage III/IV PDAC cases with local invasion and lymph node metastasis than in those without lymph node metastasis, indicating that FABP4 is associated with PDAC carcinogenesis and is likely to be a predictive marker of poor prognosis. The gene discussed is FABP4; the disease is metastatic malignant neoplasm in the lymph nodes.