Which of the following is a non-molar trophoblastic neoplasm?: (A) Complete hydatidiform mole, (B) Paial hydatidiform mole, (C) Invasive mole, (D) Choriocarcinoma
Answer is D. 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