A rare case of biatrial myxoma in an 11-year-old girl patient with thromboembolic stroke: A case report

INTRODUCTION: Cardiac myxomas (CM) are benign primary tumors typically found in the left atrium, but biatrial myxomas are exceptionally rare, comprising only 3-5 % of cases. This report highlights the rarity of biatrial myxomas in a young patient, the importance of early recognition due to the risk of thromboembolic events, which can lead to stroke. Excellent surgical intervention is needed to prevent CM recurrences. CASE PRESENTATION: An 11-year-old girl presented with sudden onset of left-sided hemiparesis, aphasia, right-sided facial drooping, cephalgia, palpitations, nausea, and intermittent chest pain over the past two months. Laboratory examination revealed anemia and elevated D-Dimer. Echocardiography and cardiac CT demonstrated large masses in the right and left atrium, suggesting myxomas. The patient was diagnosed with biatrial myxomas complicated by thromboembolic stroke. CLINICAL DISCUSSION: Complete mass evacuation was performed through median sternotomy. Histopathology examination confirmed CM. CONCLUSION: This case emphasizes the importance of early detection, detailed examination and surgical intervention of biatrial myxomas, especially in young patients, to prevent and manage life-threatening thromboembolic complications and recurrence of CM. Timely intervention is crucial for ensuring favorable outcomes.