Table 1.
Patient Demographics and Tumor Characteristics
| All patients (n=43) | |
|---|---|
| Age at diagnosis, median (range) | 55 (7–81) |
|
| |
| Gender* | |
| Male | 25 (58) |
|
| |
| Site of metastasis* | |
| At diagnosis (n=6) | |
| Lung | 4 (66) |
| Skin | 1 (17) |
| Heart | 1 (17) |
| At first relapse (n=18) | |
| Lung | 16 (89) |
| Liver | 1 (5) |
| Brain | 1 (5) |
| Musculoskeletal | 2 (11) |
|
| |
| Tumor Location* | |
| Upper extremity | 7 (16) |
| Lower Extremity | 19 (44) |
| Axial | 9 (21) |
| Retroperitoneal-visceral | 8 (19) |
|
| |
| Tumor Depth* | |
| Superficial | 11 (25) |
| Deep | 24 (56) |
| Visceral | 8 (19) |
|
| |
| Tumor Size* | |
| ≤ 5cm | 6 (15) |
| >5 cm and ≤ 10 cm | 19 (49) |
| >10 cm | 14 (36) |
|
| |
| Tumor Subtype* | |
| Osteoblastic | 26 (63) |
| Fibroblastic | 11 (27) |
| Chondroblastic | 4 (10) |
|
| |
| Recurrence* | |
| Local | 5 (13) |
| Distant | 17 (44) |
*
n (%) of patients with available data.