Table 1. Demographic and Tumour Information of 48 Cases.
| Variables (malignant)a | Values | Variables (benign)b | Values |
|---|---|---|---|
| Cases | 35 | Cases | 13 |
| Age (yrs) | Age (yrs) | ||
| Mean ± sd | 35.74 ± 17.97 | Mean ± sd | 41.62 ± 16.18 |
| Range | 14–75 | Range | 18–70 |
| Males-no. (%) | 24 (68.60) | Males-no. (%) | 7 (53.80) |
| Position-no. (%) | Position-no. (%) | ||
| Femur | 13 (37.14) | Femur | 4 (30.77) |
| Tibia | 6 (17.14) | Tibia | 5 (38.46) |
| Fibula | 2 (5.71) | Fibula | 1 (7.70) |
| Humerus | 2 (5.71) | Humerus | n.s. |
| Sacrum | 1 (2.86) | Sacrum | n.s. |
| Os Innominatum | 1 (2.86) | Os Innominatum | n.s. |
| Calcaneus | 1 (2.86) | Calcaneus | n.s. |
| Soft tissue | 9 (25.71) | Soft tissue | 3 (23.08) |
| Tumour volume *(cm3) | Tumour volume *(cm3) | ||
| Mean ± sd | 163.02 ± 140.88 | Mean ± sd | 159.13 ± 180.96 |
| Range | 23.40–546.60 | Range | 19.60–588.60 |
aOsteosarcoma, malignant fibrous histiocytoma, synovial sarcoma, alveolar sarcoma, Ewing sarcoma, liposarcoma, chondrosarcoma, metastatic adenocarcinoma, metastatic renal clear cell carcinoma, primitive neuroectodermal tumour, malignant chondroblastoma, epidermoid leiomyosarcoma, fibrosarcoma, malignant tenosynovial giant cell tumour.
bGiant cell tumour of bone, neurofibroma, lipoma, fibromatosis. yrs = years; no. = number. *Selected 37 tumours to calculate their volumes using the formula (4/3) π abc (a, b, c = the 3 radii).