CTICasesLeft Ventricular Pseudoaneurysm
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Imaging findings
Chest CT reveals a high-density pericardial effusion and a narrow-necked outpocketing arising from the anterior apical segment of the left ventricle. There is a visible myocardial defect connecting the left ventricular cavity to this contained rupture, which is bounded solely by the surrounding adherent pericardium.
Key takeaways
Left ventricular pseudoaneurysm represents a contained myocardial rupture, typically occurring as a post-infarction or post-surgical complication. Unlike true aneurysms, which involve all layers of the heart wall and usually have a broad neck, pseudoaneurysms have a narrow neck and carry a high risk of free rupture, requiring urgent surgical repair regardless of their location.
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