Gestational trophoblastic disease(GTD) is a spectrum of diseases that originate from placental trophoblastic cells,and are varied from benign diseases to malignant disorders.

• 妊娠滋养细胞疾病是一组从良性到恶性逐渐转化的疾病,该肿瘤来源于胎盘滋养细胞,很早就可转移,对妇女生命威胁很大。