目的：探讨内镜治疗肝内外胆管残余结石的效果。
Objective: to assess the effectiveness of endoscopic in treating residual stones of intrahepatic and extrahepatic bile duct.
目的研究纤维胆道镜取石在肝胆管残余结石治疗上的价值以及彗星征定律的镜外表现。
Objectives To study the value of choledochofiberscope in treatment of residual intrahepatic stones and the outer scope expression of comet sign.
结论单纯性胆囊切除术中常规经胆囊管造影可发现隐匿性胆总管结石，能有效减少胆管残余结石，减少胆道损伤。
Conclusion Routinal cholangiography through cystic duct in the simple cholecystectomy can find latent stone in the common duct, then reduce residual stone effectively and lessen biliary duct injury.
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