Osteoid osetoma

Case contributed by Dr Henry Knipe


Eight months of worsening right thigh pain.

Patient Data

Age: 11 years
Gender: Female

There is diffuse thickening of the anterolateral distal femoral diaphyseal cortex with loss of corticomedullary differentiation as well as expansion. No aggressive periosteal reaction is identified. No discrete lucency or associated soft tissue mass.


There is dense right distal femoral diaphyseal cortical thickening with a central nidus. Patchy hyperostosis within the medullary cavity. No adjacent soft tissue abnormality.

Case Discussion

Typical appearances of an osteoid osteoma

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Case information

rID: 42097
Published: 17th Jan 2016
Last edited: 14th Aug 2019
Inclusion in quiz mode: Included

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