Table 1 Patient characteristics
| Â | No. (%) |
|---|---|
Patients | 48 |
Lesions | 54 |
Median overall survival from surgery (months) | 20.2 |
Median age at surgery (years) | 63.5 |
Median time from STI to surgery (months) | 12 |
Gender | |
 Male | 32 (66.7) |
 Female | 16 (33.3) |
Primary cancer | |
 Lung | 31 (64.6) |
 Breast | 9 (18.8) |
 Others | 8 (16.6) |
Location | |
 Supratentrial | 47 (87) |
 Infratentrial | 7 (13) |
Neurological deficit | |
 Yes | 36 (67) |
 No | 18 (33) |
RPA classification at surgery | |
 Class1 | 7 (13) |
 Class2 | 18 (33) |
 Class3 | 29 (53) |
Radiotherapy before salvage surgery | |
 STI | 46 (85) |
  SRS | 24 (44.5) |
  SRT | 17 (31.5) |
  Repeated STI | 5 (9) |
 WBRT+STI | 8 (15) |
Surgical method | |
 Minimum resection | 26 (48) |
  with radiotherapy | 12 (22) |
  without radiotherapy | 14 (26) |
 Resection with free margine | 28 (52) |
Pathological diagnosis | |
 Tumor recurrence + Necrosis | 47 (87) |
 Radiation necrosis alone | 7 (13) |
Extent of resection | |
 Gross total removal | 48 (89) |
 Subtotal removal | 6 (11) |
KPS before surgery | |
 90–100 | 18 (33) |
 70–80 | 5 (9) |
 50–60 | 20 (37) |
 30–40 | 11 (20) |
 0–20 | 0 (0) |
KPS after surgery | |
 90–100 | 24 (44) |
 70–80 | 16 (30) |
 50–60 | 10 (18.5) |
 30–40 | 3 (5.5) |
 0–20 | 1 (2) |
Radiotherapy after salvage surgery | |
 Yes | 20 (38) |
  WBRT | 10 (18.5) |
  STI | 10 (18.5) |
 No | 34 (62) |
Treatment period | |
 2002–2010 | 19 (40) |
 2011–2019 | 29 (60) |