Multiple feeding vessels from left circumflex artery and right coronary artery to myxoma in left atrium

Area of Science:

• Cardiology
• Oncology

Background:

• Cardiac myxomas are the most common primary heart tumors, often presenting with constitutional or embolic symptoms.
• Dizziness can be an atypical presenting symptom of cardiac myxoma.

Observation:

• A 62-year-old woman presented with a six-month history of dizziness.
• Transthoracic echocardiography revealed a large left atrial mass.
• Coronary angiography and CT angiography demonstrated neovascularity within the mass, supplied by the right coronary artery and left circumflex artery.

Findings:

• Histopathologic examination confirmed the cardiac mass as myxoma.
• Surgical resection of the mass was performed.
• Follow-up echocardiography showed no residual tumor.

Implications:

• This case highlights the importance of considering cardiac myxoma in the differential diagnosis of unexplained dizziness.
• Advanced imaging techniques like CT angiography are valuable in characterizing cardiac masses and their vascular supply.
• Complete resection of cardiac myxoma leads to favorable outcomes and symptom resolution.