Table 1.
Main clinical characteristics in malignant peripheral nerve sheath tumors
| Characteristic | NF1 (n = 12; 17 tumors) | Sporadic (n = 17; 17 tumors) | P‐value | ||
|---|---|---|---|---|---|
| Mean age (y, SD, range) | 40.83 ± 10.53 (24‐55) | 50.24 ± 16.42 (22‐83) | 0.121 | ||
| n | % | n | % | ||
| Tumor site | 0.197 | ||||
| Head and neck | 1 | 5.9 | 2 | 11.8 | |
| Trunk | 7 | 41.2 | 3 | 17.6 | |
| Extremity | 9 | 52.9 | 10 | 58.8 | |
| Tumor size | 0.492 | ||||
| <5 cm | 3 | 17.6 | 3 | 17.6 | |
| 5‐10 cm | 2 | 11.8 | 5 | 29.5 | |
| >10 cm | 12 | 70.6 | 9 | 52.9 | |
| Stage | 0.307 | ||||
| IIA | — | — | 3 | 17.6 | |
| IIB | 2 | 16.7 | 3 | 17.6 | |
| III | 9 | 75 | 11 | 64.8 | |
| IV | 1 | 8.3 | — | — | |
| Grade of resection | 0.694 | ||||
| Total | 9 | 75 | 11 | 64.8 | |
| Subtotal | 3 | 25 | 6 | 34.2 | |
| Death | 0.058 | ||||
| Yes | 12 | 100 | 12 | 70.5 | |
| No | — | — | 5 | 29.5 | |
NF1, neurofibromatosis type 1.