LYMPHOEPITHELIAL CYST OF THE PANCREAS

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