title: Lipomatous hypertrophy presenting as superior vena cava syndrome.
abstract: We report a rare case of invasive lipomatous hypertrophy of the interatrial septum presenting as superior vena cava syndrome requiring surgical resection. Lipomatous hypertrophy of the interatrial septum is a common incidental finding and is thought to be a relatively benign condition. Classically, its appearance on cardiac computed tomography is primarily fatty with low attenuation, sharp margins and minimal enhancement, involving the interatrial septum with relative sparing of the fossa ovalis. In masses of unclear etiology or in rare, extensive cases resulting in cavity obstruction, such as ours, cardiac computed tomography provides complementary information to define tumor extent and characterize classic mass features facilitating diagnosis and management.
authors.affiliation: Cardiology Service, Department of Medicine, Walter Reed National Military Medical Center, 8901 Rockville Pike, Bethesda MD 20889, USA. Electronic address: mcheezum@partners.org.
authors.forename: Michael K
authors.initials: MK
authors.lastname: Cheezum
authors.affiliation: Cardiology Service, Department of Medicine, Walter Reed National Military Medical Center, 8901 Rockville Pike, Bethesda MD 20889, USA.
authors.forename: Matthew R
authors.initials: MR
authors.lastname: Jezior
authors.affiliation: Cardiology Service, Department of Medicine, Walter Reed National Military Medical Center, 8901 Rockville Pike, Bethesda MD 20889, USA.
authors.forename: Salvatore
authors.initials: S
authors.lastname: Carbonaro
authors.affiliation: Cardiology Service, Department of Medicine, Walter Reed National Military Medical Center, 8901 Rockville Pike, Bethesda MD 20889, USA.
authors.forename: Todd C
authors.initials: TC
authors.lastname: Villines
mesh_terms: D000369:Aged, 80 and over; D005260:Female; D006346:Heart Septum / Q000000981:diagnostic imaging; D006801:Humans; D006984:Hypertrophy / Q000000981:diagnostic imaging*; D033162:Incidental Findings; D008068:Lipomatosis / Q000000981:diagnostic imaging*; D013479:Superior Vena Cava Syndrome / Q000000981:diagnostic imaging*; D014057:Tomography, X-Ray Computed
keywords: Cardiac CT; Cardiac mass; Computed tomography; Interatrial septum; Lipoma; Lipomatous hypertrophy; SVC syndrome; Superior vena cava