There are many cases of biliary stent migration. Generally, biliary stent migrates distally. While, biliary stent rarely migrates proximally. Here we reported the case of a 49-year-old woman who underwent robot assisted right hemihepatectomy, and placement of a biliary stent for complicating bile leakage. The patient was discharged from hospital after recovering from bile leakage. Five months later, a follow-up examination revealed that the biliary stent had shifted into the liver, leading to liver perforation. We fully removed the stent by using a stone retrieval balloon and a snare. We suggested that when useing a biliary stent, it is necessary to consider of appropriate length of the stent and inform the patient when to return to the hospital for stent removal, in order to avoid stent migration and complications occurrence.

Objective To investigate the feasibility and procedures of semi-open establishment of pneumoperitoneum(SOEPP) for laparoscopic surgery in patients with a history of abdominal surgery. Methods 117,patients,with a history of abdominal surgery received SOEPP and were retrospectively reviewed from October 1994 to January 2002. Results Out of 117 patients,pneumoperitoneum was established successfully in 115 cases by SOEPP.The successful rate of SOEPP was 98 3%(115/117). Conclusions SOEPP is a safe and feasible method in most patients with abdominal operative history.