Why the study?
Left atrial mural thrombi rarely present symptomatically, strongly mimic atrial myxomas on cardiac imaging, and are rarely reported to exceed seven centimeters.
Highlights that a massive, symptomatic left atrial mural thrombus can strongly mimic an atrial myxoma on cardiac imaging.
Alerts clinicians to include mural thrombus in myxoma-like left atrial mass differentials; case reports leave diagnostic certainty open for validation.
A 75-year-old Caucasian female with a past medical history including insulin-dependent diabetes mellitus, hypertension, and dyslipidemia, presented to the emergency room for having palpitations for three weeks. Echocardiography revealed a very large left atrial mass mimicking myxoma. Mass was excised and examined by pathology, revealing a mural thrombus. A mural thrombus is not an uncommon mass found in the left atrium. However, it does not often present symptomatically, strongly mimics an atrial myxoma on cardiac imaging, and has rarely ever been reported to be greater than seven centimeters in any dimension. We present a case of a 75-year-old Caucasian woman with a massive, symptomatic cardiac thrombus masquerading as a myxoma on imaging.
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Javeed et al. (2022) studied this question.
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