Table 2.
Post RT2 Patterns of Failure
| RT2 Modality | Pre RT2 Extent of Resection | Post RT2 Pattern of Failure (n) | |||
|---|---|---|---|---|---|
| GTR | NTR | STR | |||
| CSI (n = 7) | 7 | Distant | 1 | ||
| Total recurrences after CSI RT2 | 1 | ||||
| SRS (n = 2) | No resection | Local | 1 | ||
| Focal (n = 26) | 2 | 2 | 4 | Local | 8 |
| 6 | 1 | Distant | 7 | ||
| 1 | 2 | Combined | 3 | ||
| 1 | Other (lung mets) | 1 | |||
| Total recurrences after focal or SRS RT2 | 20 |
Abbreviations: CSI, craniospinal irradiation; GTR, gross total resection; NTR, near total resection; STR, subtotal resection; SRS, stereotactic radiosurgery; RT2, second course of fractionated radiation therapy.