Osteochondroma - distal fibula

Case contributed by Frank Gaillard
Diagnosis certain

Presentation

Lump

Patient Data

Age: 13 years
Gender: Female
x-ray

A bony mass extends laterally from the distal fibula. No convincing soft tissue mass. 

Surface-shaded CT render demonstrating the mass growing from the surface of the fibula. 

Mass is composed of bone continuous with the medullary cavity of the fibula. It has a thin high T2 cartilage cap, consistent with an osteochondroma. 

Case Discussion

This case demonstrates typical appearances of an osteochondroma

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