This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General obstetrics, Subject name: Gynaecology & Obstetrics
Which of the following does not belong to gestational trophoblastic tumour 
Select and explain. 
A. Chorioangioma, B. Placental site trophoblastic tumour, C. Choriocarcinoma, D. Hydatidiform mole
A: Chorioangioma
Answer: A: Chorioangioma 
Explanation: Gestational trophoblastic diseases include : Hydatiform mole Invasive mole Placental site trophoblastic tumor Choriocarcinoma Ref: Dutta Obs 9e pg 180.