Tulip bulb sign

Tulip bulb sign refers to the characteristic appearance of annuloaortic ectasia as seen on CT angiography.

There is symmetric dilatation of the three sinuses of Valsalva, with extension into the ascending aorta and effacement of the sinotubular junction

It is seen especially in Marfan syndrome, with 60-80% patients affected 1.

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Article information

rID: 25515
System: Vascular, Chest
Section: Signs
Synonyms or Alternate Spellings:
  • Tulip bulb aorta

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