dilatation of the ascending aorta

Dilatation of the ascending aorta is a common finding in the elderly but unusual in younger patients.

Pathology

In adults, an ascending aortic diameter greater than 4 cm is considered to indicate dilatation . Aneurysmal dilatation is considered when the ascending aortic diameter reaches or exceeds 1.5 times the expected normal diameter (equal to or greater than 5 cm).

Etiology

Causes include :

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