Imaging
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Figure 21. Osteoid osteoma. (a) T1 weighted and (b) short tau inversion recovery sagittal images showing focal lesion (arrows) on the dorsum of the talar neck with surrounding oedema and an effusion. (c) CT shows characteristic features of a well defined lytic lesion with a sclerotic rim and central calcification (arrow). (d) CT showing radiofrequency ablation.





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BJR DMFR IMAGING ALL BIR JOURNALS