The American Joint Committee on Cancer 8th edition staging system for the pancreatic ductal adenocarcinoma: is it better than the 7th edition?

Pancreatic ductal adenocarcinoma (PDA) is the fourth leading cause of cancer-related death and has a poor prognosis with a 5-year survival rate of 9%. In 2019, 56,770 new PDAs and 45,750 deaths are projected to occur in the United States (1). Because of the dismal prognosis, it is important to predict the course of the disease precisely.