胰腺良性外分泌肿瘤主要指来源于胰腺导管上皮或肿瘤细胞具有导管上皮特征的良性肿瘤。虽然这些疾病的病理特点、临床症状和影像特征具有某些相似性,但是根据不同的病理类型和发病部位,各种胰腺外分泌肿瘤的临床表现不尽相同[1]。按照2000年WHO的胰腺外分泌肿瘤组织学分类,良性 Benign pancreatic exocrine tumors mainly refer to pancreatic ductal epithelium or tumor cells with ductal epithelial characteristics of benign tumors. Although the pathological features, clinical symptoms and imaging features of these diseases have some similarities, the clinical manifestations of various pancreatic exocrine tumors vary depending on the type of pathology and site of disease [1]. According to the 2000 WHO classification of pancreatic exocrine tumors, benign