Placental Trophoblastic Tumor

《英文msh词典》Placental Trophoblastic Tumor
[入口词] Placental Trophoblastic Tumor
[主题词] Trophoblastic Tumor,Placental Site
[英文释义] An uncommon variant of CHORIOCARCINOMA. It is composed almost entirely of mononuclear cytotrophoblasts (TROPHOBLASTS). Because its secretion of hCG (CHORIONIC GONADOTROPIN) is low,a large tumor may develop before the hCG can be detected.