12-year-old boy, asymptomatic:
What do you see?
Lytic lesion on distal fibular metaphysis with well-defined sclerotic borders is seen on both anteroposterior (a) and oblique (b) radiographs
What do you see?
NOF: non ossifying fibroma
– Most common fibrous bone lesion
– Same as fibrous cortical defect but larger version
– If large enough, may cause pathological fractures
– One of DON’T TOUCH lesions
NOF
Fibular non ossifying fibroma