Prognostic significance of involvement of the circumferential resection margin/surface in patients with pancreatic head cancer: a prospective evaluation of pancreatoduodenectomy specimens using the 0 and 1 mm rules

The prognostic significance of circumferential resection margin (CRM) or circumferential surface (CS) in pancreatic head cancer is controversial. We investigated the survival outcomes according to CRM or CS involvement in pancreatoduodenectomy specimens of pancreatic ductal adenocarcinoma (PDAC).