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Osteochondroma - tibia

Case contributed by Bahman Rasuli
Diagnosis certain

Presentation

Anterior distal leg lump.

Patient Data

Age: 15 years
Gender: Male
x-ray

Arising from the anterior aspect of the distal tibia is a sessile bony mass which displaces the overlying muscles. It appears to be continuous with the medullary cavity.

mri

Well-defined sessile bony outgrowth at the anterior aspect of the lower third right tibia. It shows continuity with the cortex and medullary cavity of the parent bone. There are overlying soft tissue edema and inflammatory changes which appear bright in T2 and of low signal in T1.

Case Discussion

Right tibia lower third anterior osteochondroma (exostosis) with overlying soft tissue edema and inflammatory changes.

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