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Updated: Jan 18, 2026

Endoscopic Ultrasound-Guided Biliary Drainage: Endoscopic Ultrasound-Guided Hepaticogastrostomy in Malignant Biliary Obstruction
Published on: March 25, 2022
Biliary Radiofrequency Ablation and Sphincterotomy Restenosis: A Unique Case of Biliary Obstruction
Muhammad Saad Faisal1, Muneer Hasso1, Abdulmalik Saleem1
1Department of Internal Medicine, Henry Ford Hospital, Detroit, MI.
Abstract:
Biliary radiofrequency ablation is an emerging adjunctive and palliative therapy for patients with ampullary and biliary tumors. Given the high mortality for these malignancies, data on long-term complications are limited. We report a unique case of sphincterotomy restenosis causing biliary obstruction in a 98-year-old woman with a history of ampullary adenocarcinoma treated with papillectomy and biliary radiofrequency ablation (RFA). Endoscopic retrograde cholangiopancreatography revealed restenosis at the sphincterotomy site, managed successfully with repeat sphincterotomy and stenting. This case highlights sphincterotomy restenosis as a potential late complication of biliary RFA and emphasizes the need for awareness of delayed biliary obstruction in post-RFA patients.
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