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We present the case of a 57-year-old woman who was referred for the treatment of an intrapancreatic dislocated common bile duct (CBD) stone (▶Video1). The patient had presented 8 weeks earlier with recurrent biliary colics and obstructive jaundice due to a solitary CBD stone of 12mm. An initial attempt to remove the stone via endoscopic retrograde cholangiopancreatography (ERCP) with sphincterotomy and conventional stone extraction was unsuccessful owing to the size of the stone (▶Fig. 1). A 10-Fr plastic stent was inserted to secure biliary drainage. In a second attempt 4 weeks later, use of a balloon extraction catheter and dormia basket also failed. Dilation balloon-assisted stone extraction by means of balloon sphincteroplasty up to 15mm was performed as a next step. A fully inflated balloon extraction catheter could easily be extracted without observing a stone. It was assumed that the stone passed unnoticed during manipulation with the dilation balloon. The patient was readmitted 1 week later because she felt generally unwell and had a fever. There were no signs of jaundice, abdominal pain or tenderness. A computed tomography scan revealed that the bile duct stone, which was assumed to have passed, was in fact impacted inside the pancreas, alongside and out of the CBD (▶Fig. 2). The patient was treated with broad-spectrum antibiotics and referred to our hospital. Endoscopic ultrasonography confirmed the intrapancreatic impacted stone at the lateral distal side of the CBD. Cholangiography confirmed the presence of the stone in an intrapancreatic pocket (▶Fig. 3) and the patency of the CBD. Using single-operator cholangioscopy (Spyglass DS; Boston Scientific, Marlborough, Massachusetts, USA), we were able to fragment the impacted stone using electrohydraulic lithotripsy and remove the remnant stone fragments (▶Fig. 4). The large biliary defect and remaining excavation was closed off by means of a fully covered metal stent, which was removed 6 weeks later; complete regression of the defect was observed at cholangiography. The patient underwent a laparoscopic cholecystectomy 6 weeks later and remained well.

Endoscopic removal of an extraluminal, intrapancreatic dislocated common bile duct stone