The application value of 18-fluorine fluorodeoxyglucose positron emission tomographic imaging in the differential diagnosis of benign and malignant pancreatic tumor

18-Fluorine-fluorodeoxyglucose PET imaging has a high sensitivity, specificity, positive predictive value and negative predictive value in the diagnosis and differeniation between panreatic benign and maignant pancreatic mass, and also has an important practical value for searching liver, lung and lumph node metastasis, confirming therapeuic protocol and fellow up studying after resection of malignant mass