Table 2 Bone sarcoma grading
Grade 1 | Low-grade central osteosarcoma |
|---|---|
| Â | Parosteal osteosarcoma |
| Â | Low-grade chondrosarcoma |
| Â | Clear cell chondrosarcoma |
| Â | Osteofibrous dysplasia-like adamantinoma |
Grade 2 | Periosteal osteosarcoma |
| Â | Intermediate - grade chondrosarcoma |
| Â | Classic adamantinoma |
| Â | Chordoma |
Grade 3 | Osteosarcoma (conventional, telangieclatic, small cell, secondary, |
| Â | high-grade surface) |
| Â | Ewing's sarcoma |
| Â | High-grade chondrosarcoma |
| Â | Dedifferentiated chondrosarcoma |
| Â | Mesenchymal chondrosarcoma |
| Â | Dedifferentiated chordoma |
| Â | Malignant giant cell tumour |