Biliary Stent Migration: A Rare Cause of a Bladder Stone.

Our patient presented with dysuria and pneumaturia without any prior urologic instrumentation. History included choledocolithiasis requiring endoscopic retrograde cholangiopancreatography and biliary stenting. Imaging showed a large bladder stone. The patient was taken to surgery and found to have diverticulitis. The sigmoid was resected and the bladder was found to have a small fistula tract. The bladder was opened and a large calculus was identified and extracted. The stone was opened and found to contain a biliary stent. Although biliary stenting is generally considered safe, migration can occur. This is the only report of biliary stent migration into the bladder and subsequent stone formation.

Duke Scholars

Author Michael R Abern Urology