2009 Southern Regional Meeting Abstracts

Case Report: We report a case of pulmonary vein synovial sarcoma with extensive intra-left atrial spread causing mitral valve obstruction and left lung invasion. The patient is a 26 year-old Hispanic man who has complained of progressive left-sided chest pain and two episodes of near-syncope in the past few months. We found a large mass in left hemithorax and a 5-cm intra-left atrial mass with mitral valve outflow tract obstruction. He underwent excision of the left atrial tumor, revealing its origin from left superior pulmonary vein. Pathological and histochemical findings were consistent with monophasic synovial sarcoma. To our knowledge, this is the first reported case of pulmonary vein monophasic synovial sarcoma extending to the left atrium and causing mitral valve outflow tract obstruction.





Echocardiogram showed large pedunculated mass, 4.4 x 2.4 cm-sized in left atrium