Primary tumors of the heart: the great masqueraders

摘要

First, although the authors listed dyspnea on exertion, arrhythmias, thromboembolism, pericarditis and congestive heart failure as presenting symptoms, they failed to mention superior vena caval syndrome as one of the not uncommon manifestations. Because cardiac hemangioendothelioma and hemangioendotheliosarcoma are usually located in the right atrium, in contrast to myxoma which is usually located in the left atrium, they may achieve a sufficient size to cause superior vena caval syndrome.