Article 1 Cardiac imaging techniques 1 Doppler echography 1 Heart atria 1 Thrombosis 1 Tumor 1 adenocarcinoma 1 adult 1 case report 1 computer assisted tomography 1 differential diagnosis 1 dyspnea 1 electrocardiogram 1 heart atrium myxoma 1 heart atrium thrombosis 1 histopathology 1 human 1 limb swelling 1 liver metastasis 1 male 1 pericardial effusion 1 phlebotomy sternotomy 1 superior cava vein obstruction 1 transthoracic echocardiography 1 tumor thrombus 1