Approach to benign bone tumours
Characteristic
History
Slow growing
Painless / less pain
No constitutional symptoms
Trivial injury prior to pathological fracture
Small swelling
Radiological Apprearance
Surrounding soft tissue shadow
Soft tissue calcification
Periosteal reaction
Cortical thinning
Cortical expansion / expensile lesion
Cortical erosion
Cortical break / pathological fracture
Sclerotic rim over the cortex
Inner cortex scalopping
Medullary
Lytic lesion / cyctic lesion
Centrally / eccentrically located lesion or cyst
Radiolucent / radiodense
Ground-glass appearance
Any septation - less / many septations
Any fallen leaf/ fragment sign
Well-defined sclerotic rim
Medullary calcification / opacities
Narrow zone of transition
Physis / epiphysis / joint preservation
Juxtaarticular involvement
Monostotic
Polyostotic
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