Key result
Surgical excision of rare cystic cardiac myxoma yields complete resolution without recurrence at one year.
Why the study?
Cystic myxoma is a rare variant of cardiac myxoma with few cases reported, and its unique anatomical and hemodynamic features are not well described.
Case Report (n=1)
No
This case highlights the utility of multimodality imaging, particularly contrast echocardiography and transesophageal echocardiography, in identifying the vascular supply and diagnosing rare cystic variants of cardiac myxoma.
Answers are grounded in this paper and cite their sources.
Supports surgical excision for rare cystic myxomas; hypothesis-generating for multimodality imaging and long-term outcomes.
BACKGROUND: Myxoma is the most common benign cardiac tumor. We reported a rare variant of balloon-like cystic cardiac myxoma. CASE PRESENTATION: A 54-year-old woman presented with exertional dyspnea, chest tightness, and intermittent dizziness. Electrocardiogram and laboratory studies were unremarkable. Transthoracic echocardiography(TTE) revealed a balloon-like cystic mass in the left atrium mimicking a blood-filled cyst. Contrast echocardiography demonstrated a contrast-filled lesion with iso-myocardial enhancement. Transesophageal echocardiography(TEE) identified a distinct arterial inflow at the cyst base and an outflow orifice, which was further confirmed during surgery by the administration of cardioplegic solution. The mass was successfully resected and confirmed a cystic cardiac myxoma. DISCUSSIONS: Cystic myxoma is a rare variant with only few cases reported. The presented balloon-like variant of myxoma exhibited unique anatomical and hemodynamic features that elucidate its formation mechanism.
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Zhong et al. (2026) conducted a case report in Cystic cardiac myxoma (n=1). Surgical excision was evaluated on Tumor recurrence and resolution of symptoms. Surgical excision of a rare balloon-like cystic cardiac myxoma resulted in complete resolution of the mass and normal mitral valve function, with no tumor recurrence at one-year follow-up.
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