Flail aortic valve--a forme fruste of Marfan's syndrome?

Marfan's syndrome is an autosomal dominant disorder with risk of premature death from rupture of an aneurysm or aortic dissection. A case of acute severe aortic regurgitation due to flail aortic valve in a patient with family history of Marfan's syndrome which may be a form fruste of this syndrome is reported.