High-Output Bile Leak Following AAST Grade III Liver Injury Resolved With Endoscopic Stenting: A Case Report

Nonoperative management (NOM) has become the standard of care for hemodynamically stable blunt liver trauma; however, biliary complications may delay recovery. We report the case of a previously healthy 20-year-old man who sustained an AAST Grade III liver laceration in a motor vehicle collision and subsequently developed a high-output intrahepatic bile leak. An ultrasound-guided percutaneous drain initially produced 880 mL/day, with the output remaining elevated at approximately 450 mL/day. Endoscopic retrograde cholangiopancreatography (ERCP) demonstrated extravasation from a posterior branch of the right intrahepatic duct. Placement of a 7-Fr transpapillary plastic stent (endoscopic retrograde biliary drainage, ERBD) resulted in rapid reduction and eventual cessation of bile output, with closure confirmed on tubography and drain removal on hospital day (HD) 42. The patient recovered without surgical intervention and remained well on follow-up. This case illustrates that clinically significant bile leakage can occur even after moderate liver injury and highlights a step-up management strategy, percutaneous drainage followed by ERCP, that can be effectively applied in resource-limited community hospitals.