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Case of the Week 392 
What is the most likely diagnosis?
- 62 year-old with cardiac arrhythmia
Axial CT scan of heart
- Left Atrial Myxoma
- Metastases
- Mitral Regurgitation
- Lipomatous Hypertrophy of the Interatrial Septum
- Asymmetric Septal Hypertrophy
Additional Image - Another axial CT scan of heart
Additional Images
Axial CT scan of heart
Answer:
.
4. Lipomatous Hypertrophy of the Interatrial Septum
.
.
More (Click Discussion Tab)
Lipomatous Hypertrophy of the Interatrial Septum
General Considerations
- Less rare than originally thought
- Benign accumulation of unencapsulated collection of brown fat in interatrial septum
- Hyperplasia more than hypertrophy of fat cells
- Associated with older age and obesity
.
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| LearningRadiology.com |
is an award-winning educational website aimed primarily at medical students and radiology residents-in-training, containing lectures, handouts, images, Cases of the Week, archives of cases, quizzes, flashcards of differential diagnoses and “most commons” lists, primarily in the areas of chest, GI, GU cardiac, bone and neuroradiology. |
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