<prompt> Which of the following is a non-molar trophoblastic neoplasm?Complete hydatidiform molePaial hydatidiform moleInvasive moleChoriocarcinoma  <response>: GTD histologically is divided into hydatidiform moles, which are characterized by the presence of villi, and non-molar trophoblastic neoplasms, which lack villi.Nonmolar trophoblastic neoplasms include choriocarcinoma, placental site trophoblastic tumor,and epithelioid trophoblastic tumor.Reference: William;s Obstetrics; 25th edition; Chapter 20; Gestational trophoblastic diseases 