Second Uterine Evacuation for Low-risk Gestational Trophoblastic Neoplasia

Inclusion Criteria: * Histopathological diagnosis of molar pegnancy according to the morphological criteria described by Sebire et al., who meet the diagnostic criteria for low-risk non-metastatic GTN according to FIGO 2000 criteria Exclusion Criteria: 1. High risk GTN (FIGO risk score ≥ 7) or metastatic disease at diagnosis of GTN (stage II, III or IV); 2. Histopathological diagnosis of choriocarcinoma, placental site trophoblastic or epithelioid trophoblastic tumor at the second curettage; 3. Previous chemotherapy treatment; 4. Level of hCG at the time of GTN diagnosis less than 20 IU/L (to minimize the risk of inclusion of patients with false positive hCG, either by cross-reaction with pituitary hormones or by the presence of circulating heterophilic antibodies); 5. Relapsed GTN; 6. Incomplete medical records. 7. Loss to follow-up; 8. Voluntary desire to stop participating in the study.