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Updated: Feb 4, 2026

Endoscopic Ultrasound-Guided Biliary Drainage: Endoscopic Ultrasound-Guided Hepaticogastrostomy in Malignant Biliary Obstruction
Published on: March 25, 2022
[Hemobilia caused by hepatic artery pseudoaneurysm after endoscopic biliary stenting for malignant hilar biliary
Yoshinori Okubo1,2, Tomohiro Suzuki1, Minami Hashimoto1,2
1Department of Gastroenterology, Fukushima Rosai Hospital.
Abstract:
A 78-year-old female presented at our hospital with hilar biliary strictures caused by gallbladder cancer. Metal stents with a dilated diameter of 8mm were placed in a side-by-side fashion in the left and right hepatic ducts. However, 3 months after stenting, the patient experienced a sudden onset of hematemesis. Emergent enhanced abdominal angiography revealed a right hepatic arterial pseudoaneurysm that had likely ruptured, thus causing the hemobilia. Probable association of biliary stents with pseudoaneurysm was also demonstrated. Selective angiography revealed bleeding from the pseudoaneurysm into the biliary stents, which was controlled by coil embolization. The patient was subsequently discharged on hospital day 15.
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