RT Journal Article SR Electronic T1 Rupture of portal vein pseudoaneurysm caused by impinging infected walled off pancreatic necrosis (WOPN): a rare complication JF BMJ Case Reports JO BMJ Case Reports FD BMJ Publishing Group Ltd SP e239045 DO 10.1136/bcr-2020-239045 VO 14 IS 3 A1 Venu Bhargava Mulpuri A1 Vipan Kumar A1 Surinder Rana A1 Rajesh Gupta YR 2021 UL http://casereports.bmj.com/content/14/3/e239045.abstract AB We report a case of walled off pancreatic necrosis in a patient with alcoholic pancreatitis who underwent endoscopic ultrasound-guided multiple pigtail catheter drainage. 10 days later patient presented with massive haemorrhage likely due to erosion of portal vein pseudoaneurysm caused by decubitus of pigtails. Patient required emergent portal venorrhaphy to arrest haemorrhage.