Myxoma of the right and left ventricles,A Case Report

Myxoma is the most common benign tumor of the heart , with an estimated incidence of 0/5 to 1 per million per year. Over 75 percent originating in the left atrium and 15 to 20 percent originating in the right atrium , with the remaining 8% arising in either the right or left ventricle . The mean age of patient with nonfamilial myxoma is 56 years and 60 to 70 percent of these patients are female. These myxomas occur most frequently between the third and sixth decades of life . Most myxomas are grossly round or oval in shape with polipoid features and others are gelatinous’ many are prone to fragment spontaneously (figure 1) . They are essentially nonmalignant. In the 90% of cases. The tumors originate in the atria and the pedunculated masses typically have a base of attachment in the atrial septa . Myxomas analyzied in surgical series typically average 4 to 8 cm in diameter, but the range varies from 1 to 15 cm in the literature. One study reported the weight of resected myxomas ranging from 8 to 175 g . A diagnosis of myxoma requires the presence of myxoma cells. On microscopy, myxoma characteristically shows patterns of lipidic cell embedded in a myxoid stroma.