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Definition of Thoracic aneurysm

Thoracic aneurysm: A local widening and bulging of a blood vessel (an aneurysm) within the thorax (chest). See: Aortic aneurysm. An aneurysm is a localized widening (dilatation) of an artery, the aorta . At the area of an aneurysm, there is typically a bulge and the wall is weakened and may rupture. The word "aneurysm" comes from the Greek "aneurysma" meaning "a widening."

Source: MedTerms™ Medical Dictionary
http://www.medicinenet.com/script/main/art.asp?articlekey=6119
Last Editorial Review: 5/12/2014

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Medically reviewed by Martin Zipser, MD; Board Certified: Surgery



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