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©2010 Baishideng.
World J Gastroenterol. Jan 14, 2010; 16(2): 143-155
Published online Jan 14, 2010. doi: 10.3748/wjg.v16.i2.143
Table 5 Intraoperatory grading of PVT extension[17]
Yerdel’s grading
< 50% occlusion of the portal vein
> 50% occlusion of the portal vein (including total occlusion)
Complete thrombosis of both portal and proximal superior mesenteric vein
Complete thrombosis of portal vein and proximal and distal superior mesenteric vein


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