卵黄囊瘤(yolk sac tumors,YST)又称内胚窦瘤,是一种起源于生殖细胞的高度恶性肿瘤,约占原始生殖细胞肿瘤的20%,常发生在儿童期和青春期,平均年龄19岁,40岁以上极为罕见。此瘤常发生于性腺部位(睾丸、卵巢),也可发生在生殖细胞从卵黄囊迁移生殖嵴的中线径路上[1-2],发生在宫颈的卵黄囊瘤极为少见。我院2011年1月收治1例,分析报告如下。 Yolk sac tumor (YST), also known as endodermal sinus tumor, is a highly malignant tumor originated from germ cells, accounting for about 20% of primordial germ cell tumors, often occurs in childhood and adolescence, with an average age of 19 Years old, 40 years old is extremely rare. This tumor often occurs in the gonadal site (testis, ovary), can also occur in the germ line from the yolk sac to migrate the reproductive ridge of the midline diameter [1-2], occurs in the cervical yolk sac tumor is extremely rare. In our hospital in January 2011 admitted to a case, the analysis report is as follows.