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Aneurysm of the aortic root

Last reviewed dd mmm yyyy. Last edited dd mmm yyyy

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Aortic root aneurysms are fusiform aneurysms of the proximal part of the ascending aorta. The aortic valve ring is often involved resulting in aortic regurgitation.

Histological features of aortic root aneurysms include;

  • loss of elastic laminae
  • smooth muscle atrophy
  • accumulation of mucin within the media

Risk factors include;

  • cystic medial necrosis
  • Marfan's syndrome
  • Ehlers-Danlos syndrome

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