This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Gynaecological oncology, Subject name: Gynaecology & Obstetrics
EMACO regimen of chemotherapy is used in the treatment of 
Select and explain. 
A. Carcinoma cervix, B. Gestational trophoblastic neoplasia, C. Malignant Ovarian germ cell tumor, D. Endometrial carcinoma
B: Gestational trophoblastic neoplasia
Answer: B: Gestational trophoblastic neoplasia 
Explanation: EMA-CO a cyclic non, cross-resistant combination of etoposide, methotrexate, and actinomycin D alternating with cyclophosphamide and vincristine.Etoposide induces complete remission in 95% of patients with nonmetastatic and low-risk metastatic GTN. The use of EMA-CO induced an 83% remission rate in patients with metastasis and a high-risk score.Ref: Berek and Novak&;s Gynecology; 15th edition; Chapter 39 Gestational Trophoblastic Disease