New Onset Heart Failure due to Left Atrial Myxoma

Left atrial myxomas are rare cardiac tumors typically presenting with constitutional, obstructive, or embolic symptoms, often managed surgically with positive clinical outcomes. We describe a case of an 88-year-old woman presenting status post fall due to exertional dyspnea and progressive lower extremity edema, found to have an elevated HS-troponin, BNP, and a large left atrial mass on echocardiogram consistent with a cardiac myxoma. Given high surgical risk, palliative care was pursued. This case underscores the need to consider left atrial myxomas in new-onset heart failure.