Osteochondroma of the fibula

Case contributed by Dr Michelle Peterson

Presentation

Acute lateral right knee pain, especially after exercise.

Patient Data

Age: 8 years
Gender: Female
X-ray

A bony protuberance is seen projecting from the lateral aspect of the proximal fibula. It shows a smooth cortical line as well as medullary continuity.

Case Discussion

Osteochondromas are the most common benign tumor, or tumor-like lesion of bone.

Plain radiography is usually sufficient to make a diagnosis. The findings in this case are typical of osteochondroma, with features including a lesion comprising both cortical and medullary bone with an overlying cap of hyaline cartilage.

Osteochondromas usually present as slow-growing masses and are an incidental finding in many cases. On rare occasion they can transform into malignant chrondrosarcoma.

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Case information

rID: 63924
Published: 4th Nov 2018
Last edited: 14th Aug 2019
Inclusion in quiz mode: Included
Institution: Gold Coast University Hospital

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