Table 1. Clinical characteristics of WDLPS/DDLPS patients analyzed in this study.
| Total (N = 56) | WDLPS (N = 19) | DDLPS (N = 37) | |
|---|---|---|---|
| Age (years) | |||
| Median (range) | 60 (30–81) | 60 (30–81) | 60 (38–81) |
| Sex | |||
| Male | 42 | 12 | 30 |
| Female | 14 | 7 | 7 |
| Tumor site | |||
| Retroperitoneal | 33 | 4 | 29 |
| Other trunk | 6 | 3 | 3 |
| Extremity | 17 | 12 | 5 |
| Tumor size (cm) | |||
| Median (range) | 14.0 (3.0–38.0) | 17.0 (6.5–38.0) | 13.0 (3.0–31.0) |
| M0/M1 | |||
| M0 | 53 | 19 | 34 |
| M1 | 3 | 0 | 3 |
| TNM stage | |||
| IA/IB | 19 | 19 | 0 |
| IIA/IIB | 3 | 0 | 3 |
| III | 31 | 0 | 31 |
| IV | 3 | 0 | 3 |
| Treatment | |||
| Surgery only | 45 | 19 | 26 |
| Surgery + chemotherapy | 3 | 0 | 3 |
| Surgery + RT | 3 | 0 | 3 |
| PBT or CIRT only | 2 | 0 | 2 |
| Palliative therapy | 3 | 0 | 3 |
| Local recurrence | |||
| No | 30 | 18 | 12 |
| Yes | 26 | 1 | 25 |
| Distant metastasis | |||
| No | 46 | 19 | 27 |
| Yes | 10 | 0 | 10 |
| Recurrence | |||
| No | 29 | 18 | 11 |
| Yes | 27 | 1 | 26 |
| Follow-up (months) | |||
| Median (range) | 42 (3–170) | 29 (9–129) | 62 (3–170) |
| Oncological outcome | |||
| No evidence of disease | 30 | 18 | 12 |
| Alive with disease | 16 | 1 | 15 |
| Dead of disease | 9 | 0 | 9 |
| Dead of other cause | 1 | 0 | 1 |
RT, radiation therapy; PBT, proton beam therapy; CIRT, carbon ion radiation therapy.