If pancreatic cancer has not metastasized, then it might be in an early stage. In this situation, consultation with a hepatobiliary surgeon is necessary for the surgeon to assess whether curative surgery can be performed. If the surgeon determines that curative surgery is feasible, this should be the preferred treatment method. Post-operatively, based on whether there are symptoms of recurrence or metastasis, such as vascular tumor thrombi or lymph node metastases, decisions concerning the necessity for adjuvant radiotherapy or chemotherapy should be made based on these high-risk factors for recurrence and metastasis.