Patient Characteristics
| Characteristic | Value |
| Age (y) | |
| ≤15 | 14 (51.9%) |
| >15 and ≤40 | 10 (37.0%) |
| >40 | 3 (11.1%) |
| Sex (n) | |
| Male | 15 (55.6%) |
| Female | 12 (44.4%) |
| American Joint Committee on Cancer stage (n) | |
| IIA | 14 (51.9%) |
| IIB | 9 (33.3%) |
| III | 1 (3.7%) |
| IVA | 1 (3.7%) |
| IVB | 2 (7.4%) |
| Location of primary tumor (n) | |
| Femur | 16 (59.3%) |
| Tibia | 9 (33.3%) |
| Fibula | 1 (3.7%) |
| Radius | 1 (3.7%) |
| Pathologic subtype (n) | |
| Osteoblastic | 23 (85.2%) |
| Fibroblastic | 3 (11.1%) |
| Telangiectatic | 1 (3.7%) |
| MRV1 (cm3) | |
| Mean ± SD | 130 ± 108 |
| Median | 94 |
| IQR | 40–223 |