Osteoid osteoma

Case contributed by Dr Hani Salam
X-ray

Cortical thickening and sclerosis is noted within the mid to distal femur. No periosteal reaction or other aggressive features. 

CT

Small central lucency representing the nidus is noted within the thickened, sclerotic cortex. 

Case Discussion

This lesion is an osteoid osteoma. CT is more sensitive than plain film at detecting a small nidus. 

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Case information

rID: 8507
Case created: 7th Feb 2010
Last edited: 28th Nov 2015
Inclusion in quiz mode: Included

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