1-5 Years
Osteomyelitis
Metastatic neuroblastoma
Leukaemia
Eosinophilic granuloma
Unicameral bone cyst
6-18 years
Unicameral bone cyst
ABC
Non-ossifying fibroma
Ewings
Osteomyelitis
Osteosarcoma
Enchondroma
Chondroblastoma (epiphyseal)
Chondromyxoid fibroma
Osteoblastoma
Fibrous dysplasia
19-40 years
Ewings
Adamantinoma
GCT (epiphyseal)
Osteosarcoma (rare)
(OB, CMF, Enchondroma)
> 40 years
Metastatic disease (polyostotic)
Multiple Myeloma
Chondrosarcoma
MFH / fibrosarcoma
Brown tumor (polyostotic)
Neuroblastoma
- sarcoma of nervous system
- usually <10y
- most common in ANS / adrenal medulla
Wilm's tumour
- nephroblastoma
- similar appearance to rhabdosarcoma