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Canadian Journal of Gastroenterology
Volume 24, Issue 6, Pages 348-350
http://dx.doi.org/10.1155/2010/456867
Brief Communication

Lymphoepithelial Cysts of the Pancreas: The Use of Endoscopic Ultrasound-Guided Fine-Needle Aspiration in Diagnosis

Zamil Karim,1 Blair Walker,2 and Eric C Lam3

1Division of General Internal Medicine, University of British Columbia, Vancouver, British Columbia, Canada
2Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, British Columbia, Canada
3Division of Gastroenterology, Department of Medicine, University of British Columbia, Vancouver, British Columbia, Canada

Received 24 September 2009; Accepted 3 November 2009

Copyright © 2010 Hindawi Publishing Corporation. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Lymphoepithelial cysts (LECs) are rare non-neoplastic lesions that can appear as a complex cyst or a mass in the pancreas. Cytology from endoscopic ultrasound-guided fine-needle aspiration (EUS-FNA) can be helpful in making a diagnosis with the aim of avoiding unnecessary surgical resection. A case involving a 51-year-old woman with lower abdominal pain who was found to have a multiloculated cystic lesion at the junction of the pancreatic body and tail is described. Cytology from EUS-FNA was consistent with a pancreatic LEC. The lesion was managed conservatively and follow-up imaging of the cyst over the following two years was unchanged. The patient remains clinically well. Cytology from EUS-FNA can help distinguish LECs from cystic neoplasms, thus preventing radical surgical resection of this benign pancreatic cyst.