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Related Experiment Video

Updated: Jul 16, 2025

A Two-Step Method for Percutaneous Transhepatic Choledochoscopic Lithotomy
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A Two-Step Method for Percutaneous Transhepatic Choledochoscopic Lithotomy

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Peribiliary cysts masquerading as choledocholithiasis.

Raja R Narayan1, Wassem Y Juakiem2, George A Poultsides1

  • 1Section of Surgical Oncology, Department of Surgery, Stanford University School of Medicine, Palo Alto, California.

Videogie : an Official Video Journal of the American Society for Gastrointestinal Endoscopy
|September 18, 2023
PubMed
Summary
This summary is machine-generated.

This study demonstrates the successful cannulation of the major papilla using a sphincterotome and guidewire. Cholangioscopy was then employed to identify polypoid saccular structures within the bile duct.

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Area of Science:

  • Gastroenterology and Hepatology
  • Endoscopic Procedures

Background:

  • The major papilla is a critical anatomical landmark in the biliary system.
  • Identification and characterization of biliary structures are essential for diagnosis and treatment.

Purpose of the Study:

  • To describe the technique for cannulating the major papilla using a sphincterotome over a straight wire.
  • To showcase the utility of cholangioscopy in visualizing polypoid saccular structures.

Main Methods:

  • Cannulation of the major papilla was performed using a sphincterotome.
  • A straight wire was utilized as a guide during the cannulation process.
  • Cholangioscopy was implemented for direct visualization of the intra-biliary structures.

Main Results:

  • Successful cannulation of the major papilla was achieved.
  • Polypoid saccular structures within the bile duct were clearly identified via cholangioscopy.

Conclusions:

  • The described technique allows for effective access to the major papilla.
  • Cholangioscopy is a valuable tool for the endoscopic evaluation of biliary abnormalities.