Pancreatic cancer can also be described as a malignant tumor occurring in the pancreas, generally with a high malignancy level, resulting in a higher probability of patient death. To understand the classification of pancreatic cancer, it can be categorized based on the location of occurrence within the pancreas and the pathological type. Based on the location of occurrence, pancreatic cancer can generally be divided into cancers of the pancreatic head, body, tail, and entire pancreas. According to the pathological types of pancreatic cancer, it can be classified into ductal adenocarcinoma, and also some special types of ductal-origin cancers, which generally include pleomorphic carcinoma, mucinous carcinoma, adenosquamous carcinoma, mucinous cystadenocarcinoma, and signet ring cell carcinoma, among others.