Cardiac Tumors By Anupama K Rao, MD, Rush University Medical Center Reviewed / Revised Feb 2021 | Modified Sep 2022 View Patient Education Classification Symptoms and Signs Diagnosis Treatment Key Points Topic Resources Atrial Myxoma (Echocardiogram) Atrial Myxoma (Cardiac MRI.. Types of Cardiac Tumors Cardiac tumors may be primary (benign or malignant) or metastatic (malignant).