Medical Definition of Aneurysm, thoracic

Aneurysm, thoracic: An aneurysm situated within the thorax (chest). See: Aneurysm, aortic. An aneurysm is a localized widening (dilatation) of an artery, vein, or the heart. 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."

Quick GuideHeart Disease: Causes of a Heart Attack

Heart Disease: Causes of a Heart Attack

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

Subscribe to MedicineNet's Heart Health Newsletter

By clicking Submit, I agree to the MedicineNet's Terms & Conditions & Privacy Policy and understand that I may opt out of MedicineNet's subscriptions at any time.


Last Editorial Review: 5/12/2014

Health Solutions From Our Sponsors