- Tumor histology and immunohistochemical studies:
I: Disease confined to the uterus II: Gestational trophoblastic tumor extends outside of the uterus, but limited to the genital structures (adenexa, vagina, broad ligament) III: Gestational trophoblastic tumor extends to the lungs, with or without known genital tract involvement IV: All other metastatic sites
Implantation site
- Other (specify):
- Additional notes: