ALB and neoplasm: Logistic univariate analysis indicated that age (P=0.024), pancreatic lesion location (P=0.029), tumor diameter (P=0.010), histological grade (P=0.011), ALB (P=0.019), ALP (P=0.004), and APAR (P=0.002) were significantly associated with synchronous distant metastasis among well-differentiated pNEN patients.