卵黄囊癌又称内胚窦瘤、婴儿型胚胎性癌、幼年性胚胎性癌。现多认为它是从生殖细胞发生并具有向胚外卵黄囊成份分化的肿瘤,它常发生于睾丸与卵巢,但也可发生于性腺以外的器官,如骶尾、后腹膜,纵膈、松果体、女阴、宫颈、阴道、阔韧带及肝等。现将我们发现于右外阴部的1例报告如下。患者:高某、女,1.5岁,发现右外侧阴部肿块一天。于1988年9月26日入院。无发热、恶心、呕吐,既往健康。 Yolk sac cancer, also known as endodermal sinus tumor, infant embryonal carcinoma, juvenile embryonal carcinoma. It is now considered more of a germ-derived tumor that has differentiated into extra-yolk sac components and occurs in the testes and ovaries but can occur in organs other than the gonads such as sacrococcygeal, retroperitoneal, mediastinum, and pine Body, vagina, cervix, vagina, broad ligament and liver. Now we found in the right vulva in 1 case report below. Patients: high, female, 1.5 years old, found the right lateral genitals mass a day. In September 26, 1988 admission. No fever, nausea, vomiting, past health.