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BMJ Case Rep. 2012 Nov 15;2012. pii: bcr-2012-007588. doi: 10.1136/bcr-2012-007588.

Biliary stent migration presenting with leg pain.

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West Penn Allegheny Health System, Pittsburgh, Pennsylvania, USA.


Although the therapeutic benefits of endoscopic retrograde cholangiopancreatography (ERCP) usually outweigh the risks, there can be rare complications, including stent migration leading to perforation, intestinal obstruction or penetration. An 87-year-old woman presented with symptomatic choledocholithiasis. Two previous endoscopic attempts at stone removal were unsuccessful. On repeat ERCP at our institution, multiple large stones were removed, but complete duct clearance could not be achieved. A plastic biliary stent was placed with plans to reattempt in 6 weeks. Postoperatively, she had mild back pain radiating into her right leg that gradually worsened to the point where she was unable to ambulate. An abdominal CT scan showed the distal aspect of the biliary stent extending through the wall of the duodenum with the tip positioned within the right psoas muscle. The stent was successfully removed via a rat-toothed forceps. Our case illustrates an extremely rare complication of biliary stent placement.

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