Highlights that left atrial appendage myxoma should be considered in the differential diagnosis of LAA masses, as it can mimic a thrombus and cause coronary microembolization.
Consider myxoma in LAA mass differentials; case report leaves open reliable noninvasive distinction from thrombus.
Myxomas are the most common benign tumors of the heart. They can arise from any heart chamber, but have rarely been described as originating from the left atrial appendage. We describe a case of left atrial appendage myxoma mimicking a left atrial appendage thrombus, and presenting with microembolization to the coronaries.
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Malik et al. (2013) studied this question.
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