<prompt> A case of Gestational Trophoblastic Neoplasia belongs to high risk group if disease develops after:Hydatidiform moleFull term pregnancySpontaneous abortionEctopic pregnancy  <response>: High risk gestational trophoblastic disease.FIGO in 2000 devised a staging system for categorisation of gestational trophoblastic neoplasia into good prognostic low risk and bad prognostic high risk disease.Good prognosis Low riskShort duration 4 monthsSerum β-hCG 40,000 mIUmlMetastasis limited to lung and vaginaNo significant prior chemotherapy No preceding term pregnancy Bad prognosis Low riskLong duration 4 monthsSerum 6-hCG 40,000 mIUmlMetastasis to brain or liverUnsuccessful prior chemotherapyGestational trophoblastic neoplasia following term pregnancy.Also if we have a look at the WHO prognostic scoring system: GTN following a term pregnancy comes under high risk.Remember:High risk GIN occurs after term pregnancy .GTN occurs most commonly after H mole. 