摘要：Eosinophilic pancreatitis(EP)is an extremely rare disease caused by purely eosinophilic infiltration of the *** is prone to being misdiagnosed as pancreatic cancer,causing unnecessary economic and physical harm to the *** report three cases of EP that were cured by steroids without relapse from 2017 to *** clinical data of the three patients,including clinical manifestations,serological manifestations,imaging(ultrasound,computed tomography,and MRI),pathological diagnosis and treatment,and telephone follow-up of all patients,were retrospectively *** addition,a literature search was conducted on the Web of Science and PubMed databases using key terms related to EP,considering case reports with no restrictions on the date of publication or *** conclusion,we analysed 19 cases and determined the diagnostic criteria for *** diagnostic algorithm for EP can be used to diagnose EP *** hope that our standards and algorithm can reduce the rate of misdiagnosis and contribute to clinical diagnosis and *** addition,we expect to evaluate more EP cases to test our diagnostic criteria and design a systematic diagnostic flow chart.