title: Syncope as an initial manifestation of atypical lipomatous hypertrophy of the interatrial septum.
abstract: Lipomatous hypertrophy of the interatrial septum (LHIS) is an incidental echocardiographic abnormality characterized by dumb-bell configuration of the interatrial septum from excess fat deposition. We report a case of syncope in a patient with LHIS obstructing the superior vena cava at the right atrial junction.
authors.affiliation: Cardiovascular Division, University of Toledo Medical Center at Toledo, Ohio, USA.
authors.forename: Mujeeb
authors.initials: M
authors.lastname: Sheikh
authors.forename: Syed
authors.initials: S
authors.lastname: Hasan
authors.forename: Yousuf
authors.initials: Y
authors.lastname: Kanjwal
authors.forename: Thomas
authors.initials: T
authors.lastname: Schwann
authors.forename: Blair P
authors.initials: BP
authors.lastname: Grubb
mesh_terms: D054087:Atrial Septum / Q000473:pathology*; D006332:Cardiomegaly / Q000150:complications / Q000175:diagnosis*; D009202:Cardiomyopathies / Q000150:complications / Q000175:diagnosis*; D005260:Female; D006801:Humans; D008068:Lipomatosis / Q000150:complications / Q000175:diagnosis*; D008875:Middle Aged; D013479:Superior Vena Cava Syndrome / Q000175:diagnosis* / Q000209:etiology; D013575:Syncope / Q000209:etiology*