Calcaneal lipoma with Cockade sign
Left ankle trauma due to falling.
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A well defined lytic lesion with narrow transitional zone is noted at the anteroinferior portion of the calcaneum which shows a small central sclerotic focus.
This is a case of an intraosseous calcaneal lipoma with central calcification, an incidental finding in a 40 year-old patient with ankle trauma. This appearance resembles the badge generally worn upon a hat and is called the "Cockade sign".
- Bruni L. The "cockade" image: a diagnostic sign of calcaneum intraosseous lipoma. Rays. 1987;11 (1): 51-4. Pubmed citation