What am I looking at?
Visual recognition
Uncovered self-expanding metal biliary stent on a dedicated delivery catheter, with an open metallic mesh rather than a continuous fabric or polymer lining.
13-15
Uncovered biliary SEMS

Three-panel learning framework
What am I looking at?
Uncovered self-expanding metal biliary stent on a dedicated delivery catheter, with an open metallic mesh rather than a continuous fabric or polymer lining.
What does it do, and where will I see it?
Provides self-expanding metallic biliary scaffolding without a covering, most often for malignant biliary obstruction, including hilar disease in which continued drainage through side branches is important.
What most clearly distinguishes it from similar devices?
The open metallic mesh permits drainage through the stent interstices and preserves side-branch communication, distinguishing it from a continuously covered biliary stent.