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Case contributed by Assoc Prof Frank Gaillard


Pain around left knee.

Patient Data

Age: Young adult

An expansile lesion involving the proximal fibula has irregular periosteal reaction and is mostly lytic with a small area of central calcification. No involvement of the adjacent tibia. No convincing soft tissue mass. 

Nuclear medicine

Delayed bone scan images demonstrate marked activity in the proximal fibula. No other lesions. 


Knee x-rays post operative

Postoperative x-rays of the knee. The patient went on to have a curettage and bone graft of the lesion. 

Case Discussion

This case demonstrates appearances of an osteoblastoma which was confirmed histologically. 

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Case information

rID: 9155
Published: 20th Mar 2010
Last edited: 13th Aug 2019
Inclusion in quiz mode: Included

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