| Staging | Gestational Trophoblastic Neoplasm |
| Features | |
| Stage I | Restricted to the uterine body |
| Stage II | Neoplasm present in pelvis, vagina, adnexa, and broad ligament |
| Stage III | Neoplasm with extension to the lung, with or without extension to the genital region |
| Stage IV | All other metastasis sites |