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Updated: Mar 14, 2026

Cardiac Magnetic Resonance for the Evaluation of Suspected Cardiac Thrombus: Conventional and Emerging Techniques
Published on: June 11, 2019
Pathologic Features of Lone Aortic Mobile Thrombus in the Ascending Aorta
Hidehito Endo1, Hikaru Ishii1, Hiroshi Tsuchiya1
1Department of Cardiovascular Surgery, Kyorin University, Tokyo, Japan.
Abstract:
This report describes the case of a 79-year-old man with aortic mobile thrombus in the ascending aorta, followed by a discussion of the pathologic basis of aortic mobile thrombus formation. The patient underwent replacement of the ascending aorta. Macroscopic examination revealed an aortic wall ulcer with cholesterol-rich atherosclerotic plaque under the aortic mobile thrombus. Microscopic examination showed plaque rupture. These findings are very similar to those of plaque rupture in the coronary artery. We speculate that plaque rupture of localized aortic atherosclerosis is one of the causes of aortic mobile thrombus.
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The Aorta
The average diameter of the aorta is approximately 2-3 cm, but the size can vary depending on the section of the aorta and the individual's age, sex, and body size. The aorta is...

