Biliary Stent Migration: A Rare Cause of a Bladder Stone

Area of Science:

• Urology
• Gastroenterology
• Surgical Pathology

Background:

• Biliary stenting is a common procedure for choledocholithiasis.
• Complications, though rare, can include stent migration.
• Urinary tract symptoms like dysuria and pneumaturia warrant thorough investigation.

Purpose of the Study:

• To report a unique case of biliary stent migration into the bladder.
• To describe the subsequent formation of a bladder stone.
• To emphasize the importance of considering rare complications of biliary interventions.

Main Methods:

• Case report detailing patient presentation and medical history.
• Review of imaging findings (e.g., bladder stone).
• Surgical intervention including sigmoid resection and bladder exploration for stone extraction.

Main Results:

• A large bladder calculus was identified and surgically removed.
• The calculus contained a migrated biliary stent.
• The patient presented with dysuria and pneumaturia secondary to the bladder stone.

Conclusions:

• Biliary stent migration to the bladder is an exceedingly rare event.
• This migration can lead to significant urologic complications, including calculus formation.
• Clinicians should maintain awareness of uncommon stent-related complications.