This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Twin Pregnancy, Molar Pregnancy, Gestational Trophoblastic disease and contraception in special situations (Sour Grapes!), Subject name: Gynaecology & Obstetrics
A case of Gestational trophoblastic neoplasia belongs to high risk group if disease develops after 
Select and explain. 
A. Hydatidiform mole, B. Full term pregnancy, C. Spontaneous, D. Ectopic pregnancy aboion
B: Full term pregnancy
Answer: B: Full term pregnancy 
Explanation: WHO SCORING FOR GESTATIONAL TROPHOBLASTIC DISEASE (Score > 6 is high risk) PROGNOSTIC SCORING 0 1 2 4 1. Age <=39 >39 2. Antecedent pregnancy mole aboion term pregnancy 3. Interval (pregnancy and sta of CT) <4 4-6 7-12 >12 4. Hcg <10,000 1000 - 10,000 10,000 - 1 lakh >1 lakh 5. Blood group O or A B or AB 6. Largest tumor size <3 3-5 >5 7. Site of metastasis spleen, kidney GIT Brain, liver 8. No. of metastasis 1-3 4-8 >8 9. Prior chemotherapy 1 drug >=2 drugs