Gestational Choriocarcinoma, also known as molar pregnancy with choriocarcinoma, is related to non-gestational choriocarcinoma and choriocarcinoma. An important gene associated with Gestational Choriocarcinoma is H19 (H19 Imprinted Maternally Expressed Transcript), and among its related pathways/superpathways are Response to elevated platelet cytosolic Ca2+ and Cell surface interactions at the vascular wall. Affiliated tissues include placenta and liver, and related phenotypes are choriocarcinoma and neoplasm