The Prognostic Impact of Extracapsular Lymph Node Involvement in Ductal Pancreatic Adenocarcinoma

Presence and extent of extracapsular lymph node involvement (ECLNI) will be scored by reviewing all original pathological slides. ECLNI is defined as metastatic adenocarcinoma extending through the nodal capsule into the perinodal fatty tissue. Observers: 1 experienced board-certified GI pathologist, blinded for follow-up results. Follow-up data are obtained by reviewing patients charts and by a telephone survey of the patient's GP/gastroenterologist in November 2007. Statistical analysis: * Common closing date: 1/11/2007 * Kaplan-Meier survival analysis (Log-Rank, Wilcoxon) * Cox logistic regression (uni/multivariate)