中山醫學大學2025-12-032026-04-012025-12-032025-12-03https://scholars.csmu.edu.tw/handle/123456789/8680Infectious complications after endoscopic transmural drainage of walled-off necrosis (WON) are not frequent. Herein, I report a case of alcoholic pancreatitis complicated by infected WON following endoscopic ultrasound-guided cystogastrostomy (EUS-CGS). A 53-year-old man underwent EUS-CGS with two double-pigtail plastic stents for symptomatic WON. On the sixth day after the procedure, he developed fever and chills. Abdominal computed tomography revealed that the WON had transformed into a gas-containing abscess. Subsequently, he underwent EUS-CGS again, and a lumen-apposing metal stent (LAMS) was utilized to maintain the new cystogastrostomy. His fever subsided the next day. The smaller diameters of the double-pigtail plastic stents may have contributed to the infection due to insufficient drainage, and a LAMS with larger diameter could be used as a salvage therapy. 關鍵字 Walled-off necrosis ； Lumen-apposing metal stent ； Endoscopic ultrasound ； Acute pancreatitis ； Infectionzh-TWarticle