Presentation
Painful left ankle.
Patient Data
Age: 17 years
From the case:
Non-ossifying fibroma
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A mixed lytic and sclerotic lesion with sharp lobulated contour and excentric location in the distal tibia, focal thinning of the adjacent cortex. A cortical disruption at the anterior cortex in keeping with a pathological fracture.
Case Discussion
The lesion is greater than 2 cm and therefore called a non-ossifying fibroma instead of a fibrous cortical defect. There is cortical thinning of the distal tibia with a cortical disruption in keeping with a pathological fracture.