We describe a 52-year-old male who underwent endoscopic retrograde biliary drainage for acute cholangitis associated with common bile duct stones. Endoscopic papillary balloon dilatation was performed, and the stones were removed using a balloon catheter. Simultaneously, we initiated edoxaban for portal vein thrombosis. Approximately one month later, he visited our hospital complaining of tarry stools and dizziness. Contrast-enhanced computed tomography revealed a pseudoaneurysm in the hepatic artery (A7), and he was diagnosed with hemobilia from bile duct perforation associated with the hepatic arterial pseudoaneurysm. We performed an emergent transcatheter arterial embolization. Notably, re-bleeding has not occurred to date. Hepatic arterial pseudoaneurysms can occur after acute cholangitis;therefore, careful follow-up is essential.
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