Presentation
Sports injury.
Patient Data
Age: 20 years
Gender: Male
From the case:
Cortical desmoid
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Alignment is normal. No fracture or joint effusion. A well-defined lucency at the posterior cortical margin of the medial distal posterior femur is in keeping with a cortical desmoid.
Case Discussion
Cortical desmoid is a do not touch lesion. It represents a 'tug' lesion, due to repetitive stress at the attachment of the medial head of gastrocnemius or distal adductor magnus at the posterior medial aspect of the distal femoral metaphysis
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