left atrial myxoma


Atrial Myxoma

Primary tumors of the heart are uncommon with an incidence ranging between 0.0017% and 0.19%. Approximately 75% of primary cardiac tumors are benign and 25% are malignant, with myxomas accounting for 50% of the benign tumors. Myxomas originate most commonly in the left atrium (75%).The next most frequent site is the right atrium (15%–20%) followed by the right and left ventricle (5% to 10% each) 1. The clinical manifestations of cardiac myxomas may vary from having one of the three classic presentations (outflow obstruction, embolism, and constitutional symptoms) to having mild or no symptoms.