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Lymphoepithelial cyst of the pancreas.
  1. R Gafă,
  2. E Grandi,
  3. L Cavazzini
  1. Dipartimento di Medicina, Sperimentale e Diagnostica-Sezione di Anatomia Istologia e Citologia Patologica, Università di Ferrara, Italy.

    Abstract

    A rare case of lymphoepithelial cyst of the pancreas is reported. Microscopically the cyst content consisted of keratinous material and the walls were lined by mature squamous epithelium surrounded by dense lymphoid tissue. Immunohistochemistry showed diffuse reactivity for CD20 and CD3 in the lymphoid tissue and uniform positivity for cytokeratins in the squamous epithelium. Although the histogenesis of lymphoepithelial cysts of the pancreas is not understood, awareness of this lesion is helpful in differentiating it from other pancreatic cystic lesions.

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