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pseudoaneurysm
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pseudoaneurysm

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Also known as Aneurysm, False, false aneurysm

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. 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. A pseudoaneurysm (PSA) does not contain any layer of the vessel wall.

Key facts

Medical condition (new).name
Pseudoaneurysm
Medical condition (new).synonyms
False aneurysm
Medical condition (new).image
Heart pseudoaneurysm a4c.jpg
Medical condition (new).caption
Pseudoaneurysm of the left ventricle, four-chamber echocardiography view
Medical condition (new).field
Cardiology

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Wikidata facts

Image
Heart pseudoaneurysm a4c.jpg
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Commons category
Pseudoaneurysms
NCI Thesaurus ID
C50711
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Article

11 sections
Contents
  • Signs and symptoms
  • Diagnosis
  • Locations
  • Treatment
  • Covered stent
  • Ultrasound probe compression
  • Ultrasound-guided thrombin injection
  • Surgical ligation (with or without distal bypass)
  • See also
  • References
  • External links

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. 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. A pseudoaneurysm (PSA) does not contain any layer of the vessel wall.

This differentiates it from a true aneurysm, which is contained by all three layers of the vessel wall, and a dissecting aneurysm, which has a breach in the innermost layer of an artery and subsequent dissection/separation of the tunica intima from the tunica media.

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