Macaroni sign (arteries)

The macaroni sign is a sign seen in Takayasu arteritis on ultrasound. It represents the smooth, homogeneous and moderately echogenic circumferential thickening of the arterial wall that occurs in Takayasu arteritis.

The sign is highly specific for Takayasu arteritis, more commonly noted in the common carotid artery (CCA).  

Inspired signs

Article information

rID: 29675
System: Vascular
Section: Signs
Synonyms or Alternate Spellings:
  • Macaroni's sign

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Cases and figures

  • Case 1
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