Microscopic margins and patterns of treatment failure in resected pancreatic adenocarcinoma.

Objective: To correlate microscopic margin status with survival and local control in a large cohort of patients from a high-volume pancreatic cancer center.

Design: Retrospective database review. A uniform procedure for margin analysis was used with 4-color inking (neck, portal vein groove, uncinate, and posterior pancreatic margin) by the surgeon in the operating room.