Largest tumor (cm), considering uterus | - | 3 - 4 cm | ≥5 cm | - |
Sites of metastases | Lung | Spleen, kidney | Gastrointestinal | Brain, liver |
Number of metastases | - | 1 - 4 | 5 - 8 | >8 |
Chemotherapy failure | - | - | Single agent | 2 or more agents |