What is the most likely diagnosis?
- 11 year-old male who struck left knee
Lateral Radiographs of both Right and Left Knees
- Osteosarcoma
- Osgood-Schlatter Disease
- Cortical Desmoid
- Dislocated Patella
- Spokewheel Fracture
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Answer:
3. Cortical Desmoid
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Cortical Desmoid
General Considerations
- AKA Distal Femoral Metaphyseal Irregularity, Avulsive Cortical Irregularity, Periosteal Desmoid
- Age range: 3-17 years, most common 10-15
- Cortical irregularity at the posterior, medial and distal femur deep to the attachments of medial gastrocnemius or distal adductor magnus