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Secondary cancer.
| Case | Interval | Histology | Site | Prognosis follow-up |
|---|---|---|---|---|
| 1 | 6 years | Chondroblastic osteosarcoma | Proximal left femur | CDF 6 years |
| 2 | 5 years | Osteoblastic osteosarcoma | Distal right femur | CDF 2 years |
| 3 | 8 years | Osteoblastic osteosarcoma | Proximal right tibia | DOD 6 months |
CDF, continuous disease free; DOD, dead of disease.
