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Name 2 features of benign bone tumours and 3 features of malignant bone tumours.
- Benign: well-demarcated, sclerotic surrounding bone
- Malignant: ill-defined border, mottled, Codman's triangle
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Name 3 types of benign bone lesions.
- Osteochondroma
- Osteoid osteoma (common 50yo+)
- Non-ossifying fibroma (children, femur/tibia)
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Describe the clinical picture of osteosarcoma.
- 75% occur in children
- M > F
- 60% occur in knee
- Rapidly worsening pain +/- fever & swelling
- Raised ALP
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Describe the clinical picture of Ewing's sarcoma.
- 1-20yo common
- M >F
- Lower extremities
- Pain, swelling, fever
- Raised ESR
- Highly malignant - metastasise early
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Describe the clinical picture of giant cell tumour.
- 20-40yo common
- Knee, distal radius
- Pain / pathological fracture
- Locally invasive and potentially malignant
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