Report of a right ventricular outflow tract myxoma in a young adult

Background Primary cardiac masses are rare and usually benign. Myxomas are usually seen in adults, accounting for 25%-40% of all cardiac tumors from birth to adolescence. The majority of myxomas (75%) are located in the left atrium. Right ventricular myxomas are very rare, only found in 2%-4% of cases. The most important distinguishing feature of a myxoma is the characteristic narrow stalk and tumor mobility, although sessile, non-mobile myxomas can also occur. Myxomas may be homogeneous or may have central areas of heterogeneity representing hemorrhage and necrosis. Calcification may also be detected. In adults, differential diagnosis for an intracavitary cardiac mass includes thrombus, myxoma, lipoma and nonmyxomatous neoplasms.