Table I.
Clinicopathological characteristics of patients with osteosarcoma.
| Characteristics | No. of cases | % |
|---|---|---|
| Age at diagnosis, years | 91 | |
| <18 | 45 | 49.5 |
| ≥18 | 46 | 50.5 |
| Gender | 91 | |
| Female | 50 | 54.9 |
| Male | 41 | 45.1 |
| Tumor size, cm | 91 | |
| <5 | 45 | 49.5 |
| ≥5 | 46 | 50.5 |
| Anatomic location | 91 | |
| Tibia/femur | 56 | 61.5 |
| Elsewhere | 35 | 38.5 |
| Histological subtype | 90 | |
| Osteoblastic | 30 | 33.3 |
| Chondroblastic | 30 | 33.3 |
| Fibroblastic | 12 | 20.0 |
| Mixed | 18 | 13.4 |
| Clinical stage | 87 | |
| I+IIA | 54 | 62.1 |
| IIB/III | 33 | 37.9 |
| Distant metastasis | 91 | 45.1 |
| Absent | 55 | 60.4 |
| Present | 36 | 39.6 |