title: Successful excision of a cystic tumor of the atrioventricular nodal region.
abstract: Cystic tumor of the atrioventricular nodal region is a rare cardiac primary tumor that can cause heart blockage and sudden death. Antemortem diagnosis and successful excision of the atrioventricular nodal region are extremely rare. A 45-year-old woman who presented with palpitations is reported. Electrocardiography revealed first-degree atrioventricular block. Echocardiography, computed tomography, and magnetic resonance imaging scans revealed a cystic mass attached to the interatrial septum. Complete surgical excision of the mass was achieved, although placement of a permanent pacemaker was required for complete heart blockage. Histopathological examination revealed the mass to be a cystic tumor of the atrioventricular nodal region. A 5-year follow-up has revealed no sign of recurrence.
authors.affiliation: Department of Cardiovascular Surgery, National Cardiovascular Center, Suita, Japan.
authors.forename: Shunsuke
authors.initials: S
authors.lastname: Saito
authors.forename: Junjiro
authors.initials: J
authors.lastname: Kobayashi
authors.forename: Osamu
authors.initials: O
authors.lastname: Tagusari
authors.forename: Ko
authors.initials: K
authors.lastname: Bando
authors.forename: Kazuo
authors.initials: K
authors.lastname: Niwaya
authors.forename: Hiroyuki
authors.initials: H
authors.lastname: Nakajima
authors.forename: Masakazu
authors.initials: M
authors.lastname: Yamagishi
authors.forename: Toshikatsu
authors.initials: T
authors.lastname: Yagihara
authors.forename: Soichiro
authors.initials: S
authors.lastname: Kitamura
mesh_terms: D001283:Atrioventricular Node / Q000000981:diagnostic imaging / Q000473:pathology / Q000601:surgery*; D003560:Cysts / Q000000981:diagnostic imaging / Q000601:surgery*; D005260:Female; D006338:Heart Neoplasms / Q000000981:diagnostic imaging / Q000473:pathology / Q000601:surgery*; D006801:Humans; D008875:Middle Aged; D011859:Radiography