Key result
Surgical excision of left atrial myxoma resolves heart failure and multiorgan dysfunction in an adolescent.
Why the study?
Cardiac myxomas are rare in children and can mimic other conditions.
Case Report (n=1)
No
A rare pediatric left atrial myxoma can present with atypical features mimicking acute poststreptococcal glomerulonephritis via type 1 cardiorenal syndrome, highlighting the importance of echocardiography in unexplained nephritic presentations.
Cardiac myxomas are rare in children and can mimic other conditions. We report a 14-year-old boy initially diagnosed with acute poststreptococcal glomerulonephritis based on hematuria, mild proteinuria, and elevated anti-streptolysin-O titers. However, worsening dyspnea, edema, and signs of heart failure prompted further evaluation. Echocardiography revealed a large left atrial mass with impaired biventricular function and tricuspid regurgitation. Surgical excision confirmed a myxoma. The patient’s renal and systemic symptoms were attributed to low cardiac output and venous congestion, not true glomerulonephritis. This case highlights the need to consider cardiac causes in pediatric patients with persistent nephritic-like features.
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Rosyady et al. (2025) conducted a case report in Left atrial myxoma mimicking acute poststreptococcal glomerulonephritis (n=1). Surgical excision of left atrial myxoma was evaluated on Symptom resolution and clinical improvement. Surgical excision of a left atrial myxoma successfully resolved nephritic-like symptoms, liver parameter abnormalities, and heart failure signs in a 14-year-old boy.
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