title: Cystic tumor of the atrioventricular nodal region.
abstract: We report a case of a 66-year-old female who presented exertional dyspnea and palpitation. Echocardiography, transesophageal echocardiography and computed tomography showed a right atrial cystic mass attached to the interatrial septum. The patient underwent successful excision of the mass. The histopathological findings confirmed the lesion as a cystic tumor of the atrioventricular nodal region. This is the third known case of this condition diagnosed antemortem and treated successfully with surgical excision.
authors.affiliation: Department of Cardiovascular Surgery, Hitachi General Hospital, 2-1-1 Jonan-cho, Hitachi, Ibaraki 317-0077, Japan.
authors.forename: Yuichiro
authors.initials: Y
authors.lastname: Kaminishi
authors.forename: Yasunori
authors.initials: Y
authors.lastname: Watanabe
authors.forename: Hiroko
authors.initials: H
authors.lastname: Nakata
authors.forename: Tatsuro
authors.initials: T
authors.lastname: Shimokama
authors.forename: Tomoaki
authors.initials: T
authors.lastname: Jikuya
mesh_terms: D000368:Aged; D001283:Atrioventricular Node / Q000000981:diagnostic imaging; D003560:Cysts / Q000000981:diagnostic imaging / Q000601:surgery*; D017548:Echocardiography, Transesophageal; D005260:Female; D006338:Heart Neoplasms / Q000000981:diagnostic imaging / Q000601:surgery*; D006801:Humans