Gestational choriocarcinoma (GC) is a type of choriocarcinoma that follows a gestational event. Similar to choriocarcinomas in general, it lies at the malignant end of the spectrum of gestational trophoblastic disease.
Pathology
Approximately 50% of gestational choriocarcinomas arise from a pre-existing molar pregnancy, while the other 50% will occur after any gestational event (abortion/ectopic pregnancy/normal pregnancy) 2.