DescriptionPortal vein thrombosis grading after Yerdel et al.pdf
English: Portal vein thrombosis grading after Yerdel et al 2000 in Transplantation (DOI: 10.1097/00007890-200005150-00023). Grade 1: Minimally or partially thrombosed portal vein (PV), in which the thrombus is mild or, at the most, confined to <50% of the vessel lumen with or without minimal extension into the superior mesenteric vein (SMV); Grade 2: >50% occlusion of the PV, including total occlusions, with or without minimal extension into the SMV; Grade 3: Complete thrombosis of both PV and proximal SMV. Distal SMV is open; Grade 4: Complete thrombosis of the PV and proximal as well as distal SMV.
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