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Fig. 3E MRI of distal femur performed after radiofrequency ablation in
30-year-old woman with osteoid osteoma. Coronal turbo spin-echo T1 image
obtained 7 days after radiofrequency ablation shows heterogeneous isointense
signal in marrow adjacent to probe placement tract. Band of low peripheral
marrow signal change (arrow) is seen. No significant change was seen
in STIR and T1 imaging features 28 days after radiofrequency ablation.