非功能性胰腺神经内分泌肿瘤

定义 英文原文（暂无中文）

A rare neuroendocrine tumor of pancreas characterized by a well-differentiated epithelial pancreatic neuroendocrine neoplasm measuring at least 0.5 cm, without distinct hormonal syndrome. Tumors <0.5 cm are called microadenomas. Microadenomatosis is the multifocal occurrence of microadenomas. Histopathologic examination shows an organoid growth pattern and expression of synaptophysin and chromogranin A on immunohistochemistry. Tumors are often discovered incidentally, or patients may present with symptoms related to local or metastatic tumor spread. Microadenomas are considered benign, while larger tumors may behave in a malignant manner with extrapancreatic spread, metastasis, or recurrence.

别名

非功能性高分化胰腺神经内分泌肿瘤

基本事实

遗传方式

不适用

发病年龄

成年期、老年期

外部标识与链接