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A pseudoaneurysm, also known as a false aneurysm, is a locally contained hematoma outside an artery or the heart due to damage to the vessel wall. [1] The injury passes through all three layers of the arterial wall, causing a leak, which is contained by a new, weak "wall" formed by the products of the clotting cascade. [1]
A true aneurysm is one that involves all three layers of the wall of an artery (intima, media and adventitia).True aneurysms include atherosclerotic, syphilitic, and congenital aneurysms, as well as ventricular aneurysms that follow transmural myocardial infarctions (aneurysms that involve all layers of the attenuated wall of the heart are also considered true aneurysms).
Rasmussen aneurysm is a distinctive variant of pseudoaneurysm of a branch of the pulmonary artery, predominantly found adjacent to or within a lung cavity, both often arising as a complication of pulmonary tuberculosis. [1] [2] The condition was originally described by Fritz Valdemar Rasmussen in 1868. [3]
Ventricular aneurysms usually grow at a very slow pace, but can still pose problems. Usually, this type of aneurysm grows in the left ventricle.This bubble has the potential to block blood flow to the rest of the body, and thus limit the patient's stamina.
Intradural pseudoaneurysm is a broad term to describe several subtypes of aneurysms that fundamentally are different from the more typical intracranial berry-type aneurysms. References [ edit ]
An estimated 0.67% of patients admitted to the hospital after major motor vehicle accidents were found to have blunt carotid injury, including intimal dissections, pseudoaneurysms, thromboses, or fistulas. [20] Of these, 76% had intimal dissections, pseudoaneurysms, or a combination of the two.
These are pseudoaneurysm, caused by thrombus clogging the distal arteries, which results in inflammation and small tears at the site of occlusion. These inflammation and thrombis can caused by infective endocarditis , artificial heart valve or other heart problems.
The majority of individuals suffering from coronary artery aneurysms do not exhibit any symptoms; the development of complications or concurrent atherosclerotic coronary artery disease is what causes clinical manifestations to occur.