Highlights that left atrial appendage inversion can occur due to massive pericardial effusion without prior cardiac surgery, and multimodality imaging is crucial to avoid misdiagnosis as a thrombus or neoplasm.
Left atrial appendage inversion is a very rare cause of left atrial mass that usually occur after cardiac surgery. Its echocardiographic appearance often misleads clinicians to the diagnosis of thrombus or cardiac neoplasms. Unfortunately, misdiagnosed patients often undergo unnecessary anticoagulation or surgical treatment. We are presenting a case of left atrial appendage inversion caused by massive pericardial effusion in a patient with no previous history of cardiac surgery together with demonstrative images of transesophageal echocardiography and magnetic resonance imaging.
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Geçmen et al. (2011) studied this question.
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