The difference between pancreatic cysts and pancreatic cancer is that cysts are regular, while cancer is irregular and sometimes can be seen pancreatic duct, blood vessel compression and metastasis. 1. Pancreatic cysts are mostly liquid-like low-density shadow masses with regular shape and clear cyst wall boundaries, and the cyst wall can be thickened, crumpled and calcified on CT. The cyst wall can be strengthened after enhanced scanning, but there is no change of cystic fluid. 2.Pancreatic cancer imaging mainly shows that the pancreas can be seen as diffuse or localized enlargement, peripancreatic fat tissue disappears, the pancreatic duct can be seen to be narrowed or dilated, and sometimes lymph nodes or liver metastasis can be seen on imaging signs.CT examination can see pancreatic cancer with a diameter of >2cm, and the color ultrasound of the early stage of pancreatic cancer is still not clear. Imaging is only an auxiliary examination, the diagnosis of the disease needs to be combined with clinical symptoms, medical history and a variety of laboratory tests, if there are changes in the imaging recommended to go to the regular medical institutions.