CTICasesIntrapericardial Lipoma
Imaging findings
CT scan shows a well-defined, encapsulated fatty mass situated posterior to the left atrium. The mass is located within the pericardial space, directly abutting the left atrium and subtly compressing the coronary sinus, without demonstrating aggressive invasion.
Key takeaways
Intrapericardial lipomas are rare, benign, encapsulated fatty tumors of the heart and pericardium. They are typically slow-growing, incidental findings and can remain stable for years. They must be distinguished from epicardial fat pads, lipomatous hypertrophy of the interatrial septum, and other posterior mediastinal fatty lesions.
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