Presentation
Fall, is there a fracture?
Patient Data
Age: 30 years
From the case:
Dorsal defect of the patella
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Within the superolateral patella is a 9 mm well-defined lucent lesion with a narrow sclerotic zone of transition, and a clear matrix. No other findings of note.
Case Discussion
Appearance is the typical appearance of a dorsal defect of the patella, a well recognized anatomic variant. It is a classic "do-not-touch-lesion" of the bone.