Case Report

Journal of Gastroenterology

, Volume 32, Issue 5, pp 700-703

Lymphoepithelial cyst of the pancreas

  • Hideaki KazumoriAffiliated withDepartment of Internal Medicine, Hirata Municipal Hospital
  • , Toshihiro SizukuAffiliated withDepartment of Internal Medicine, Hirata Municipal Hospital
  • , Toru UekiAffiliated withDepartment of Internal Medicine, Hirata Municipal Hospital
  • , Yasushi UchidaAffiliated withDepartment of Internal Medicine, Hirata Municipal Hospital
  • , Shyun YamamotoAffiliated withDepartment of Internal Medicine, Hirata Municipal Hospital

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Abstract

A case of lymphoepithelial cyst (LEC) of the pancreas is presented. A 48-year-old man complaining of general fatigue was found to have a heterogeneous water-dense mass protruding from the surface of the pancreas on plain computed tomography (CT). Dynamic CT disclosed septa within the mass. Magnetic resonance imaging (MRI) showed a hypoiintense mass on T1-weighted imaging, and a hyperintense mass on T2-weighted imaging. MRI with gadolinium enhancement revealed septa within the mass. Endoscopic ultrasonography showed septa and fine echogenic structures within the cystic echoic lesion. Endoscopic retrograde pancreatecraphy showed a normal duct system. Distal pancreatectomy with splenectomy was performed, with a suspected diagnosis of cystic neoplasms of the pancreas. Histopathologic examination disclosed LEC of the pancreas. Our case suggests that LEC should be considered in the differential diagnosis of cystic neoplasms of the pancreas.

Key words

lymphoepithelial cyst pancreas cyst pancreas