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恶性卵黄囊瘤又称卵黄囊瘤(yolksac tumor)或内胚窦瘤(endodermal sinustumor),过去由于对其组织发生和形态特征认识不足,曾有中肾瘤、胚胎癌或恶性畸胎瘤等名称。由于本瘤来源于多能的原始生殖细胞,故结构上具有类似早期胚胎发育过程中形成的种种成分,形态多样,容易误诊,以至影响正确治疗和预后。本文拟结合所收集病例材料,对本瘤的形态学特
Malignant yolk sac tumor, also known as yolksac tumor or endodermal sinustumor (endodermal sinustumor), in the past due to its lack of knowledge on the occurrence and morphological features, had a nephron, embryonal carcinoma or malignant teratoma and other names . Since this tumor is derived from pluripotent primordial germ cells, it has structurally similar components formed in the process of early embryo development and is diverse in shape and easily misdiagnosed as well as affecting proper treatment and prognosis. This article intends to combine the case material collected, the morphological characteristics of the tumor