回顾自2005年来术中胆道镜诊断术前未能发现的胆总管下端肿瘤的典型病例。
Methods Review the classic cases which were diagnosticated distal bile duct tumors by intra-operative cholangioscopy since 2005.
肿瘤大部分位于胰腺，多有完整包膜，不伴有胆总管扩张。
The tumor was mainly located in the pancreas with complete capsule, no common bile duct dilatation was accompanied.
肿瘤大部分位于胰腺，多有完整包膜，不伴有胆总管和胰管扩张。
The tumor was mainly located in the pancreas with complete capsule, no common bile duct or pancreatic duct dilatation was accompanied.
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