Cardiac Myxoma is a tumor originating in connective tissue and is the most common tumor of the heart. It is usually located in the left or right atrium. An echocardiogram usually will reveal the tumor’s presence. Symptoms can include shortness of breath, weight loss, blood in the sputum, fever, loss of consciousness, and sudden death. Most Myxomas are benign (non-cancerous) and treatment involves surgical removal of the tumor.