Pancreaticoduodenectomy specimen:determination of retroperitoneal surgical margin

There is a common consensus amongst pathologists as to how to determine and examine the pancreatic,biliary tract and gastrointestinal surgical marginsfor specimens after pancreaticoduodenectomy (PD) . However,for the retroperitoneal surgical margin which is one of the most important surgical margins in PD has not been well studied,and its determination remains unclear. In the present study,the definition,evaluation criteria and clinical significance of retroperitoneal surgical margin in PD were analysed. The relationship between R0,R1 resection rates and survival rates were compared. We presented a new technique to obtain a negative surgical margin in the uncinate process of the pancreas. 12 refs.