| lymphoepithelioma | <tumour> A poorly differentiated radiosensitive squamous cell carcinoma involving lymphoid tissue in the region of the tonsils and nasopharynx; composed of irregular sheets, or small groups, of neoplastic epithelial cells (squamous or undifferentiated), with a slight to moderate amount of fibrous stroma that contains numerous lymphocytes; metastasizes at an early stage to cervical lymph nodes. Origin: Lympho-+ epithelium + -oma, tumour (05 Mar 2000) |
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