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淋巴上皮瘤是一种发生在鼻咽部与EB病毒密切相关的常见恶性肿瘤。发生在鼻咽部以外的此类肿瘤则被称为淋巴上皮瘤样癌(lymphoepithelioma like carcinoma,LELC)[1-2],是以淋巴组织显著增生、浸润并包绕未分化癌组织为特征的较为特殊的恶性肿瘤,比较少见,多发生在前肠来源的器官
Lymphoepithelioma is a common malignant tumor that is closely related to Epstein-Barr virus in the nasopharynx. Such tumors that occur outside the nasopharynx are known as lymphoepithelioma like carcinoma (LELC) [1-2] and are characterized by a marked proliferation, infiltration of lymphoid tissue and surrounding undifferentiated carcinoma More specific malignant tumors, more common in the foregut-derived organs