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What is pseudoaneurysm mean?
A pseudoaneurysm, also known as a false aneurysm, is when there is a local hematoma being contained by the surrounding tissue around an artery. It is usually caused by a penetrating injury to the vessel, which then leads to a leakage of blood and causes this local hematoma. It may be pulsatile and can resemble a true aneurysm. A true aneurysm involves all three layers of the blood vessel. A dissecting aneurysm is when blood from the vessel lumen tracks between the two inner layers, the intima and the tunica media. This can cause blockage of the flow. A perivascular hematoma is a collection of blood that is external to the three vessel layers. Due to being close to the vessel, it can also be pulsatile, and can be mistaken for a pseudoaneurysm or aneurysm.
Femoral pseudoaneurysms may complicate up to 8% of vascular interventional procedures. Small pseudoaneurysms can spontaneously clot, while others need definitive treatment.
A pseudoaneurysm may also occur in a chamber of the heart following myocardial damage due to ischemia or trauma. A pseudoaneurysm of the left ventricle is a potentially lethal complication from a myocardial infarction.
referencePosted on 14 Oct 2024, this text provides information on Miscellaneous in Medical related to Medical. Please note that while accuracy is prioritized, the data presented might not be entirely correct or up-to-date. This information is offered for general knowledge and informational purposes only, and should not be considered as a substitute for professional advice.
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