Annuloaortic ectasia

Last revised by Yuranga Weerakkody on 3 Aug 2022

Annuloaortic ectasia refers to a proximal dilatation of the aortic root at the level of the aortic annulus, which is the same level as the sinus of Valsalva.


Annuloaortic ectasia occurs with connective tissue diseases such as Marfan disease and Ehlers-Danlos syndrome. It is a cystic medial necrosis, which puts the patients at increased risk for aortic dissection, which in turn may lead to rupture 1-3.

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