Dysplasia at the surgical margin is associated with recurrence after resection of non-invasive intraductal papillary mucinous neoplasms.

Journal Article (Journal Article)

BACKGROUND: The significance of a positive margin in resected non-invasive pancreatic intraductal papillary mucinous neoplasms (IPMN) remains controversial. The aim of this study was to determine recurrence rates when dysplasia was present at the final surgical margin. METHODS: A prospectively maintained database identified 192 patients undergoing resection of non-invasive IPMN. Pathological, peri-operative and recurrence data were analysed. RESULTS: Ductal dysplasia was identified at the final surgical margin in 86 patients (45%) and defined as IPMN or Pancreatic Intraepithelial Neoplasia PanIN in 38 (20%) and 54 (28%) patients, respectively. At a median follow-up of 46 months, 40 (21%) patients recurred with 31 developing radiographical evidence of new cysts, 6 re-resected for IPMN and 3 diagnosed with pancreatic cancer within the remnant. Of those with margin dysplasia, 31% developed recurrent disease compared with 13% in those without dysplasia (P = 0.002). On multivariate analysis, margin dysplasia was associated with a three-fold increased risk of recurrence (P = 0.02). No relationship between dysplasia and development of pancreatic cancer was found. DISCUSSION: In this study, dysplasia at the margin after a pancreatectomy for non-invasive IPMN was associated with recurrence in the remnant gland, but not at the resection margin. While this finding may warrant closer follow-up, it does not identify a gland at higher risk for the subsequent development of invasive disease.

Full Text

Duke Authors

Cited Authors

  • Frankel, TL; LaFemina, J; Bamboat, ZM; D'Angelica, MI; DeMatteo, RP; Fong, Y; Kingham, TP; Jarnagin, WR; Allen, PJ

Published Date

  • October 2013

Published In

Volume / Issue

  • 15 / 10

Start / End Page

  • 814 - 821

PubMed ID

  • 23782351

Pubmed Central ID

  • PMC3791121

Electronic International Standard Serial Number (EISSN)

  • 1477-2574

Digital Object Identifier (DOI)

  • 10.1111/hpb.12137


  • eng

Conference Location

  • England