起源于肝外胆管的小细胞神经内分泌癌:病例报告

Small-cell neuroendocrine carcinoma arising from an extra-hepatic bile duct:a case report

Introduction Neuroendocrine tumors(NETs)are neoplasms with variable malignant potential that may arise from neuroendocrine cells.The gastrointestinal tract is a common site for primary NETs and annually 1.3 for every 100,000 persons are newly detected[1,2].Although gastrointestinal NETs are common in the small bowel,appendix,rectum,and stomach,those that arise from the extra-hepatic bile duct are extremely rare(0.1%–0.4%)[3-5].