Paediatric Benign
Osteoid osteoma 5-35
Eosinophilic granuloma 1-35
Fibrous dysplasia 1-50
Adamantinoma 10-40

Paediatric Malignant
Osteosarcoma 5-25
Ewings PNET5-20

Benign
Non ossifying fibroma 5-20
Giant cell tumour 15-45
Aneurysmal bone cyst 10-45
Osteoid osteoma 5-35
Osteoblastoma 1-30
Osteochondroma 1-50
Chondroblastoma 10-30
Enchondroma 10-60
Eosinophilic granuloma 1-35
Chondromyxoid fibroma 1-25

Malignant
Osteosarcoma 5-25
Chondrosarcoma 20-55
Ewings PNET5-20
Adamantinoma 10-40