Table 2.
Patient, tumor, and treatment characteristics
| Age | Median 64 y, (range, 33-88) |
| Male | 9 |
| Female | 7 |
| Site | |
| Extremity | 14 |
| Upper extremity | 4 |
| Lower extremity | 10 |
| Trunk | 2 |
| Histology | |
| Dedifferentiated liposarcoma | 1 |
| CIC-rearranged sarcoma | 1 |
| Extraskeletal myxoid chondrosarcoma | 1 |
| Myxofibrosarcoma | 4 |
| Myxoid liposarcoma | 3 |
| Pleomorphic leiomyosarcoma | 1 |
| Synovial sarcoma | 2 |
| Undifferentiated pleomorphic/spindle cell sarcoma | 3 |
| Grade∗ | |
| Grade 2 | 8 |
| Grade 3 | 3 |
| Greatest tumor dimension on final pathology | |
| ≤5 cm | 3 |
| >5 cm and ≤10 cm | 9 |
| >10 cm and ≤15 cm | 3 |
| >15 cm | 1 |
| Metastatic at diagnosis | 4 |
| PTV size | Median 485 cm3 (range, 56-4353) |
| Radiation technique | |
| Step and shoot IMRT | 3 |
| VMAT | 16 |
| Radiation dose | |
| 27.5 Gy/5 fx | 1 |
| 30 Gy/5 fx | 14 |
| 40 Gy/5 fx | 1 |
| Prior unplanned excision with longitudinal incision | 4 |
| Wound closure | |
| Primary closure | 13 |
| Regional/pedicled flap | 2† |
| Free flap | 1 |
| Skin graft | 1† |
| Incisional wound vacuum use with surgery | 13 |
| Pathologic margin status | |
| R0 | 10 |
| R1 | 6 |
| R2 | 0 |
Abbreviations: fx = number of fractions; IMRT = intensity modulated radiation therapy; R0 = gross total resection; R1 = microscopically positive margins; R2 = macroscopically positive margins; volumetric arc therapy; VMAT = volumetric arc therapy.
∗
Grade not available for 5 patients.
†
One patient underwent closure with a regional pedicle flap and a skin graft.