Aortic root dilatation

Last revised by Dr Yuranga Weerakkody on 26 Aug 2022

Aortic root dilatation refers to abnormal enlargement of the aortic root which may be focally aneurysmal or a more diffuse ectasia.

Clinical presentation

Aortic root dilatation is often completely asymptomatic and found incidentally 2. In rare instances, it may present with a catastrophic complication such as an aortic dissectionaortic rupture, or congestive heart failure from aortic insufficiency.


Aortic root dilatation can occur in isolation but is often associated with other conditions including:

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Cases and figures

  • Case 1: Marfan syndrome
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