cell neoplasm that is characterized by undifferentiated malignant epithelial cells together with an infiltrate of mature lymphocytes. Lymphoepithelial carcinoma most frequently occurs in the nasopharynx and it has occasionally been documented in diverse sites outside the nasopharynx such as the salivary glands, larynx, thymus, etc (1-3). Yet primary lymphoepithelial carcinoma has never been rep...