绒毛膜癌是一种高度恶性的滋养细胞肿瘤,有妊娠性绒癌和非妊娠性绒癌区别。绝大多数的绒毛膜癌继发于妊娠之后,称为妊娠性绒癌。继发于妊娠的绒癌,可以看作是一种同种移植性肿瘤。少数绒毛膜癌常与卵巢恶性肿瘤如无性细胞瘤、恶性畸胎瘤、胚胎性癌等同时存在,是恶性生殖细胞肿 Choriocarcinoma is a highly malignant trophoblastic tumor with choriocarcinoma and non-pregnant choriocarcinoma difference. The vast majority of choriocarcinoma secondary to pregnancy, known as pregnancy choriocarcinoma. Secondary to pregnancy choriocarcinoma, can be regarded as a kind of allograft tumor. A small number of choriocarcinoma often associated with ovarian cancer such as dysgerminoma, malignant teratoma, embryonal carcinoma exist at the same time, is a malignant germ cell tumor