Infiltrating Extracardiac Tumor on Echocardiogram Carcinoma esophagus infiltrating into left atrium. Primary cardiac tumors usually move with cardiac movements. Relative immobility of an intracardiac mass usually indicate intracardiac extension of extracardiac neoplasms. Dr. Gopalan Rajesh @DrRajeshG1 #Infiltrating #Tumor #Echocardiogram #clinical #cardiology #a4c #oncology