biliary stent
Tubular prosthetic device placed to relieve bile duct obstruction, commonly used in pancreaticobiliary malignancies.
Full Definition
A biliary stent is a hollow tubular device inserted into the bile duct system to maintain ductal patency and relieve obstruction. In gastrointestinal oncology, biliary stents are frequently used for palliative drainage in patients with malignant biliary obstruction from pancreatic, cholangiocarcinoma, or metastatic disease. Stents may be plastic or self-expanding metal (SEMS), with choice depending on patient prognosis and treatment goals. Editorial note: Distinguish between therapeutic and diagnostic procedures in documentation.
Usage
Usage note: Hyphenate when used as compound adjective; specify stent material (plastic/metal) when relevant.
In Context
- "ERCP with biliary stent placement relieved the patient's obstructive jaundice." — Procedure report
- "Metal biliary stent migration required endoscopic retrieval and replacement." — Complications documentation