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              | A Case of Primary Cardiac Lymphoma with Complete Atrio-Ventricular Block and Superior Vena Cava Syndrome |  
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                  (Department of Cardiovascular Surgery, Matsuyama Red Cross Hospital, Matsuyama, Japan) 
                    | Hiromichi Sonoda | Kunihiko Jouo | Masayoshi Umesue |  
                    | Koji Matsuzaki | Kanzi Matsui |  |  
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                      | Primary cardiac malignant lymphoma (PCL), which is defined as an extra-nodal malignant lymphoma involving only the heart and/or pericardium, is extremely rare.  Its prognosis is reported to be very poor because the PCL grows rapidly and frequently causes fatal heart failure or arrhythmias.  We report a 65-year-old woman with PCL accompanied with superior vena cava (SVC) syndrome 6 weeks following a pacemaker implantation for complete atrio-ventricular block.  She underwent a partial resection of the tumor to release the SVC syndrome and subsequent systemic chemotherapy.  This combined therapy successfully induced complete remission, and improvement of the atrio-ventricular conduction disturbance was also observed. @Jpn. J. Cardiovasc. Surg. 35: 264-267 (2006)
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