Abstract
Portal vein (PV) tear is an uncommon yet potentially fatal complication associated with balloon angioplasty, particularly when treating PV stenosis caused by tumor invasion and compression. This paper presents the case of a 66-year-old male with advanced perihilar cholangiocarcinoma who experienced a PV tear during a bare-metal stent implantation and balloon angioplasty for PV stenosis induced by tumor invasion. Emergency covered stent implantation effectively manages life-threatening intra-abdominal hemorrhage, leading to successful recovery. This case highlights the importance of recognizing PV tears as complications in patients undergoing balloon angioplasty and underscores the efficacy of emergency covered stent implantation in managing such cases. Additionally, this study contributes to the literature by discussing the management strategies and outcomes associated with PV tears during balloon angioplasty.