Not all cardiac tumors are myxomas and not all benign tumors are benign: two case reports

Abstract

Background: Primary cardiac tumors originating in the heart are much less frequent than metastasis from other organs. The majority of cardiac tumors are of benign nature and only 25% are estimated to be malignant. Common symptoms of cardiac tumors include systemic embolization, congestive heart failure, and arrhythmias. Case report: We present two cases of cardiac tumors initially causing heart failure symptoms and valvular disease in relatively young patients. These tumors were initially diagnosed as myxomas, but post-op histological studies revealed the presence of angiosarcoma and hamartoma. It is important to differentiate and have a clear diagnosis because some malignant and invading tumors may require the use of adjuvant chemotherapy agents. Conclusion: It should not be taken for granted that cardiac tumors are of benign nature even if initial evaluation is consistent with myxomas. Early resection and pathological study of primary cardiac tumors are important in identifying the tumor type and targeting management.