Key result
CMR differentiates benign intramyocardial lipoma from post-infarction fatty metaplasia to support conservative management.
Why the study?
Intramyocardial lipomas are rare and clinically challenging to differentiate from more common post-infarction fatty metaplasia.
Case Report (n=1)
Cardiac MRI is essential for distinguishing rare intramyocardial lipomas from common post-infarction fatty changes, enabling conservative management for asymptomatic, distally located lesions.
CMR may aid differentiation of rare lipomas from post-MI changes; leaves open broader adoption pending larger series.
Cardiac lipomas are benign primary cardiac tumors that are most often asymptomatic and diagnosed incidentally. Cardiac magnetic resonance imaging (MRI) is the imaging modality of choice when aiming to characterize these tumors. A minority of cardiac lipomas are intramyocardial, which, when combined with the much more common post-infarction fatty metaplasia, makes diagnosing these lipomas very challenging. We review a case of intramyocardial lipoma in the distal interventricular septum that was initially detected on a low-dose computed tomography for lung cancer screening and the subsequent findings on cardiac MRI that made the diagnosis. Additionally, this case also helps to support the conservative management of intramyocardial lipomas that are more distal in the left ventricle and subsequently at lower risk for conduction arrhythmias.
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Wood et al. (2023) conducted a case report in Intramyocardial lipoma (n=1). Cardiac magnetic resonance imaging was evaluated. Cardiac magnetic resonance imaging successfully differentiated a benign intramyocardial lipoma from post-infarction fatty metaplasia, supporting conservative management for distally located lesions.
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