Multiinstitutional Validation Study of Cyst Fluid Protein Biomarkers in Patients with Cystic Lesions of the Pancreas

  • Caitlin A. McIntyre
  • , Clifton Rodrigues
  • , Aadhithyaraman Vaithiya Santharaman
  • , Debra A. Goldman
  • , Ammar A. Javed
  • , Debora Ciprani
  • , Nan Pang
  • , Anna Lokshin
  • , Mithat Gonen
  • , Mohammad A. Al Efishat
  • , Jin He
  • , Richard Burkhart
  • , William Burns
  • , Matthew Weiss
  • , Michael I. D'Angelica
  • , T. Peter Kingham
  • , Vinod P. Balachandran
  • , Jeffrey A. Drebin
  • , William R. Jarnagin
  • , Keith D. Lillemoe
  • William Brugge, Brenna Casey, Anne Marie Lennon, Mark Schattner, Christopher L. Wolfgang, Carlos Fernandez Del Castillo, Peter J. Allen

Research output: Contribution to journalArticlepeer-review

Abstract

Objective: Prospective evaluation of 2 clinical-molecular models in patients with unknown pathology who underwent endoscopic ultrasound with fine-needle aspiration (EUS-FNA) for a cystic lesion of the pancreas. Summary of Background Data: Preoperative prediction of histologic subtype (mucinous vs nonmucinous) and grade of dysplasia in patients with pancreatic cystic neoplasms is challenging. Our group has previously published 2 clinical-molecular nomograms for intraductal papillary mucinous neoplasms (IPMN) that incorporated both clinical/radiographic features and cyst fluid protein markers (sFASL, CA72-4, MMP9, IL-4). Methods: This multiinstitutional study enrolled patients who underwent EUS-FNA for a cystic lesion of the pancreas. Treatment recommendations regarding resection were based on standard clinical, radiographic, and endoscopic features. Predicted probabilities of high-risk IPMN (high-grade dysplasia/invasive cancer) were calculated using the previously developed clinical-molecular nomograms. Results: Cyst fluid was obtained from 100 patients who underwent diagnostic EUS-FNA. Within this group there were 35 patients who underwent resection, and 65 were monitored radiographically. Within the group that underwent resection, 26 had low-risk IPMN or benign non-IPMN lesions, and 9 had high-risk IPMN. Within the surveillance group, no patient progressed to resection or developed cancer after a median follow-up of 12months (range: 0.5-38). Using the clinical/radiographic nomogram alone, 2 out of 9 patients with high-risk IPMN had a predicted probability >0.5. In the clinical-molecular models, 6 of 9 patients in model 1, and 6 of 9 in model 2, had scores >0.5. Conclusions: This prospective study of patients with unknown cyst pathology further demonstrates the importance of cyst fluid protein analysis in the preoperative identification of patients with high-risk IPMN. Longer follow-up is necessary to determine if this model will be useful in clinical practice.

Original languageEnglish (US)
Pages (from-to)E129-E132
JournalAnnals of surgery
Volume276
Issue number2
DOIs
StatePublished - Aug 1 2022
Externally publishedYes

ASJC Scopus subject areas

  • Surgery

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