Abstract
Background: The clinical significance of a positive vascular groove surface (pVG-R1: tumor < 1mm from VG surface) following pancreaticoduodenectomy (PD) for pancreatic adenocarcinoma (PDAC) remains debated. The College of American Pathologists no longer considers the VG a resection margin but rather a surface that is covered in-vivo by the superior mesenteric vein (SMV) up to the portal vein confluence. We aim to evaluate the impact on the overall survival of a pVG-R1 when all other margins of resection are negative following PD.
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