Table 2.

Pathological parameters evaluated in the assessment of the resection specimen with PC

-Type of specimen

-Maximum size of the tumor

-Histological type (WHO classification of exocrine pancreatic carcinomas) (Appendix A)

-Histological grading (Appendix B)

-Local invasion*

-Perineural, lymphatic and vascular vessel invasion

-Superior mesenteric vein or portal vein involvement

-Resection margins:

+Surgical transection margins:

•Pancreatic neck   •Common bile duct

+ Circumferential resection margins:

•Superior mesenteric vein margin   •Superior mesenteric artery margin   •Posterior margin   •Anterior surface of the pancreas

- Lymph node involvement

•Total number of nodes examined   •Number of metastatic nodes

-UICC TNM staging (8th edition)

-Completeness of excision (R category)

*Requires assessment of peripancreatic tissue invasion and involvement of the intrapancreatic common bile duct, duodenum and ampulla of Vater