High magnification micrograph of choriocarcinoma. H&E stain. All types of gestational<unk> a originate from the placenta. A placenta develops in the uterus during pregnancy and becomes first site of nutrient and gas exchange between mother and fetus. It has two components such as fetal component and mother component. A fetal component is composed of cytotrophoblast and syncytiotrophoblast. The exact pathogenesis of choriocarcinoma has not been fully understood, but studies have shown cytotrophoblast cells function as stem cells and transform into malignant form. The<unk> ic cytotrophoblast further differentiates into either intermediate trophoblasts or syncytiotrophoblast.
Trophoblastic neoplasm
Embryonal carcinoma
Embryoma
Germ cell tumor
Gastroblastoma
Mixed Müllerian tumor
Gestational choriocarcinoma
Embryonal rhabdomyosarcoma