" /> floppy thumb sign - CISMeF





Preferred Label : floppy thumb sign;

Definition : Radial subluxation or dislocation of the interphalangeal joint of the thumb makes the thumb appear floppy on a radiograph. Suggests dermatomyositis or polymyositis.;

Source : Eisenberg, Ronald L. Atlas of Signs in Radiology.;

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Radial subluxation or dislocation of the interphalangeal joint of the thumb makes the thumb appear floppy on a radiograph. Suggests dermatomyositis or polymyositis.

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29/07/2025


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