Table 2 RT characteristics and treatment response (n = 30)
Characteristics | Patients | |
|---|---|---|
Number | Percent | |
Refractory/relapsed | ||
 Refractory | 27 | 90% |
 Relapsed | 3 | 10% |
Numbers of residual sites | ||
 1 | 23 | 76.7% |
 ≥ 2 | 7 | 23.3% |
Extranodal involvement | ||
 Yes | 18 | 60% |
 No | 12 | 40% |
Maximum diameter of residual tumor, median (range) | 4.5 cm (1–9 cm) | |
Lines of chemotherapy before RT | ||
 1 | 22 | 73.3% |
 2 | 7 | 23.3% |
 3 | 1 | 3.3% |
RT dose and fractionation | ||
 36 Gy/12f | 23 | 76.7% |
 30 Gy/6f | 3 | 10% |
 39.1 Gy/17f | 3 | 10% |
 30 Gy/10f | 1 | 3.3% |
 Numbers of treated sites | 45 | 100% |
 1 | 22 | 73.3% |
 2 | 5 | 16.7% |
 3 | 1 | 3.3% |
 4 | 1 | 3.3% |
 6 | 1 | 3.3% |
RT modality | ||
 IMRT | 9 | 30% |
 VMAT | 21 | 70% |
Response to RT | ||
 CR | 24 | 80% |
 PR | 3 | 10% |
 PD | 3 | 10% |