this report presents preliminary observations on the immunocytochemical localization of human chorionic gonadotropin ( hcg ) and human placental lactogen ( hpl ) in placental site trophoblastic tumors , hydatidiform moles , and choriocarcinomas and compares the findings with those of a similar immunocytochemical analysis of the placenta at various stages of development .
C0020217
hydatidiform moles
C0426226
findings