Galrinho, AFerreira, DLoureiro, JTerras, FSilva, SFerreira, R2019-06-042019-06-042000Rev Port Cardiol. 2000 Feb;19(2):243-8.0870-2551http://hdl.handle.net/10400.10/2283The authors describe a case of a recidivant pericardial effusion associated to a mass with an unusual, filamentous aspect that involved the upper part of right atrium and surrounded the upper vena cava. Despite the diagnostic techniques employed--transesophageal echocardiography and magnetic resonance imaging, the etiologic diagnosis could not be done, so a biopsy of the mass was made by percutaneous approach using transesophageal echocardiography to control the procedure. The histopathological result was an angiosarcoma of the right atrium. The authors make a brief review of the literature about this rare condition.porEcocardiografia transesofágicaNeoplasias cardíacasHemangiosarcomajournal article