Left atrial enlargement
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At the time the case was submitted for publication Rade Kovač had no recorded disclosures.View Rade Kovač's current disclosures
Long-standing dyspnea and intermittent abdominal pain
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Huge cardiomegaly due to massively enlarged left atrium with dilated pulmonary veins, and compressive atelectasis of the adjacent lung bilaterally. Other cardiac chambers are compressed and displaced.
IVC and hepatic veins are severely dilated. There is marked periportal edema (periportal halo).
This case illustrates how much the left atrium can enlarge due to chronically elevated left atrial pressures, elevated left atrial volume, or both. Most common causes include left ventricular dysfunction, mitral valve disease, atrial fibrillation, and arterial hypertension.
Every time the left atrial enlargement is identified on CT, one must look for possible thrombus formation, especially in the left atrial appendage.
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