Table 3.
Characteristics of relapsed patients
| Risk | Number | Primary site | Previous radiotherapy | Relapsed site | Time to relapse (days) | Survival |
|---|---|---|---|---|---|---|
| Low risk | 1 | Rt. BG | LFRT 39.6Gy (XRT) | Lt. medial temporal lobe | 660 | DOD |
| 2 | Rt. BG | LFRT 39.6Gy (XRT) | Rt. frontal & anterior temporal lobe | 1146 | Alive | |
| 3 | Rt. BG | WV 19.8Gy + LFRT 19.8Gy (PRT) | Subependymal seeding | 885 | Alive | |
| 4 | Lt. BG | WV 19.8Gy + LFRT 19.8Gy (PRT) | Sellar area | 2654 | Alive | |
| 5 | suprasellar | Only chemotherapy | Biopsy track | 102 | Alive | |
| High risk | 1 | 3rd ventricle |
CSI 23.4Gy + LFRT 30.6Gy (XRT) |
Pineal gland | 449 | DOD |
| 2 | Pineal gland |
WV 23.4Gy + LFRT 30.6 (XRT) |
Pineal gland | 201 | DOD | |
| 3 | Pineal gland |
CSI 23.4Gy + LFRT 30.6Gy (XRT) |
Pineal gland | 365 | DOD |
Rt. right, BG basal ganglia, LFRT limited-field radiation therapy, Gy gray, Lt. left, DOD died of disease, XRT photon radiation therapy, WV whole ventricle, PRT proton radiation therapy, CSI craniospinal irradiation