A Left Atrial Appendage Thrombus Mimicking Atrial Myxoma

Key Points

• To report a case where a left atrial appendage thrombus was misidentified as an atrial myxoma based on imaging.
• Case report with detailed echocardiographic analysis.
• Cardiac imaging techniques were employed to assess the masses.
• Follow-up evaluations were conducted to monitor changes in the mass characteristics.
• Imaging initially suggested presence of atrial myxoma, with a mass size characterized as significant.
• Subsequent evaluations revealed the mass to be a thrombus, confirmed through imaging and clinical assessment.
• Patient outcomes improved significantly following appropriate thrombus management.