Radiation Oncology/Bone/Background
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Epidemiology
[edit | edit source]Incidence: 8 per 1,000,000.
2440 cases in 2004.
Incidence: osteosarcoma (35%), chondrosarcoma (30%), Ewing's sarcoma (16%)
Histology
[edit | edit source]| Histologic Origin | Proportion | Malignant Tumor |
|---|---|---|
| Hematopoietic | 41% | Myeloma |
| Chondrogenic | 21% | Chondrosarcoma |
| Osteogenic | 19% | Osteosarcoma |
| Unknown/bone marrow | 10% | Ewing's tumor Malignant giant cell tumor |
| Fibrogenic | 4% | Fibrosarcoma |
| Notochordal | 3% | Chordoma |
| Vascular | 2% | Hemangioendothelioma |
Note: Adapted from Dahlin DC, Bone tumors: general aspects and data on 6,221 cases, 3rd ed. 1978
Location
[edit | edit source]- EG-MODE
- Epiphysis: Giant cell
- Metaphysis: Osteosarcoma
- Diaphysis: Ewing's sarcoma
