消化系统的非内分泌肿瘤以胃、食道和结肠最常见,胰腺瘤较少;而分泌肽类激素的内分泌肿瘤,几乎只限于胰岛、胃窦和十二指肠壁。后者主要有七种类型:除胃泌素瘤、胰岛素瘤和产生类似ACTH活性物的异位肿瘤外,还有四种新类型,即胰高血糖素瘤、舒血管肠肽瘤、生长抑素瘤和胰多肽瘤。其中只有前三类有明确的临床综合征表现。组织学检查发现大多数肿瘤由不同类型 Non-endocrine digestive system of the stomach, esophagus and colon are the most common, pancreatic tumor less; and secreted peptide hormones endocrine tumors, almost confined to the islets, gastric antrum and duodenal wall. There are seven main types of the latter: in addition to gastrinomas, insulinomas, and ectopic tumors that produce ACTH-like activity, there are four new types, namely, glucagonoma, vasodilator, The tumor and pancreatic polypeptide tumor. Only the first three categories have a clear clinical syndrome. Histological examination revealed most tumors by different types