Key result
CCT identifies prominent para-cardiac fat mimicking an LAA thrombus on TEE.
Why the study?
Transesophageal echocardiography is commonly used to exclude left atrial appendage thrombus prior to cardioversion, but rare conditions can mimic thrombus.
Case Report (n=1)
Answers are grounded in this paper and cite their sources.
Cardiac computed tomography is a useful multimodality imaging tool to differentiate rare conditions like prominent para-cardiac fat from left atrial appendage thrombus when transesophageal echocardiography findings are ambiguous.
Transesophageal echocardiography is the most frequently used imaging modality for exclusion of left atrial appendage thrombus prior to cardioversion. Echocardiographers should be aware of rare conditions that may mimic left atrial appendage thrombus. Here, we describe a rare case of prominent para-cardiac fat mimicking left atrial appendage thrombus on transesophageal echocardiographic imaging. Multimodality imaging with cardiac computed tomography was instrumental in providing further anatomical delineation and characterization of the echodensity as prominent para-cardiac fat in this case.
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Honnekeri et al. (2023) conducted a case report in Prominent para-cardiac fat mimicking left atrial appendage thrombus (n=1). Cardiac computed tomography vs. Transesophageal echocardiography was evaluated. Cardiac computed tomography successfully characterized an echodensity as prominent para-cardiac fat that mimicked a left atrial appendage thrombus on transesophageal echocardiography.
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