Cystic tumors of the pancreas account for approximately 10% of all pancreatic tumors. With advances in screening techniques and increasing understanding of the disease, cystic tumors of the pancreas have received unprecedented attention. In some large pancreatic centers, cystic tumors account for more than 30% of the surgical volume. Cystic tumors of the pancreas can be classified as benign, junctional and malignant in terms of the nature of the lesion, with benign accounting for the majority. in 2000, the World health organization classified cystic tumors of the pancreas into 3 categories, plasmacytic cystic neoplasm (SCN), mucinous cystic neoplasm (MCN) and intraductal papillary mucinous cystadenoma (IPMN), based on the morphology of the tumor and the characteristics of the epithelial cells. Diagnosis Initial diagnosis of pancreatic tumors is most often made using thin-section CT. MRI is also uniquely valuable in the diagnosis of pancreatic cystic tumors. MRI has high contrast in the display of the cystic cavity, internal compartments and surrounding pancreatic parenchyma, and has an advantage over CT in showing microcystic structures. the water imaging technique and non-invasive nature of MRCP gives it an advantage in the diagnosis of IPMN. Ultrasound endoscopy (EUS) can reduce the effect of cavity organs on ultrasound and can examine pancreatic tissue more sensitively and accurately. At the same time, fine needle aspiration cytology pathology examination has high specificity and malignant cells can be found to confirm the diagnosis of malignant lesions, but cytology pathology diagnosis requires high requirements for sampling, and FNA sometimes cannot obtain enough heterogeneous cells, and this diagnosis also requires high requirements for pathologists, and often requires experienced and senior pathologists to make accurate judgments. Treatment For the treatment of cystic tumors of the pancreas, surgery is the main choice. The principle of surgery is to completely remove the tumor and protect the internal and external secretion function of the pancreas. s relationship with the main pancreatic duct. The specific surgical approach should be based on the location of the tumor, the type of pathology, the relationship with the main pancreatic duct and the overall condition of the patient. If the tumor is located in the head of the pancreas, pancreaticoduodenectomy or pancreatic head resection with preservation of the duodenum is feasible; if it is in the body of the pancreas, pancreatic segmental resection is feasible; if it is in the tail of the pancreas, pancreatic tail with simultaneous resection of the spleen or pancreatic body caudal resection with preservation of the spleen is feasible; if the tumor invades the surrounding organs such as the stomach and transverse colon, radical resection and reconstruction of the digestive tract should be pursued. If the tumor is recurrent, the patient’s general condition should be evaluated, and if necessary, re-surgical resection can be considered.