Sinusoid sign (ultrasound)

Dr Dan J Bell and Dr Tim Luijkx et al.

The sinusoid sign is a dynamic sonographic sign in M-mode describing the movement line representing the lung towards the pleural line which is displayed as a sinusoidal pattern. Similar to the quad sign, this sign has a high sensitivity and specificity for pleural effusion, which is anechoic in itself.

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Article information

rID: 30810
System: Chest
Section: Signs
Synonyms or Alternate Spellings:

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