Ghost sign (osteomyelitis)
Citation, DOI and article data
Bilodeau, L., Gaillard, F. Ghost sign (osteomyelitis). Reference article, Radiopaedia.org. (accessed on 30 Nov 2021) https://doi.org/10.53347/rID-57755
The ghost sign is an MRI feature of osteomyelitis and is helpful in distinguishing a pure (aseptic) Charcot joint from one complicated by superimposed infection.
This sign refers to the poor definition of the margins of a bone on non-contrast T1 weighted image, blending with the surrounding inflammatory phlegmon/fluid. After contrast injection, however, the outline of the bone becomes visible once more 1.
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