%0 Journal Article %T S¨ªncope como forma de presentaci¨®n de masa mediast¨ªnica %A Cabeza Mart¨ªn %A Beatriz %A P¨¦rez Su¨¢rez %A Esther %A Iglesias Bouzas %A Ma Isabel %A P¨¦rez Mart¨ªnez %A Antonio %A Tamariz Martel %A Amalia %A Aleo %A Esther %J Archivos argentinos de pediatr£¿-a %D 2012 %I Sociedad Argentina de Pediatria %R 10.5546/aap.2012.e29 %X pediatric syncope accounts for 3% of the consultations in emergency department. it is frequent in pediatrics, particularly in teenager girls between 15 and 19 years old, and up to a 25% of them have suffered from a syncopal episode. most causes are benign, but the aim in its initial evaluation is ruling out those which mean any danger. heart disease can lead to syncope in a 10-28% of cases. a detailed medical history and an exhaustive exploration are enough to rule out organic pathology in most situations. we present the case of a diffuse large b cell lymphoma located in the mediastinum diagnosed after repetitive syncopal episodes. %K syncope %K mediastinal mass %K lymphoma %K teenager %K heart disease. %U http://www.scielo.org.ar/scielo.php?script=sci_abstract&pid=S0325-00752012000200017&lng=en&nrm=iso&tlng=en