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Slice 6 of 1
Can you make the diagnosis?
Review the images, then reveal
XRMusculoskeletalConfirmedFRCR 2B
Fibrous cortical defect
Clinical Presentation
Twisted ankle at soccer. Slight swelling.
- 1Two views of the ankle demonstrate an incidental well-circumscribedcortical lucencyin the diametaphyseal region of the distal tibia
- 2It has a sharply defined sclerotic border, no periosteal reaction and no matrix mineralization
- 3Distribution of non-ossifying fibromas (NOF) and fibrous cortical defects (FCD)
- 4Layout and distribution: Frank Gaillard 2009, Line drawing of skeleton: Patrick Lynch 2006, Creative Common NC-SA-BY