title: Remarkable giant right atrial diverticulum in asymptomatic patient.
abstract: We describe the case of a 31-year-old man who had a giant right atrial diverticulum. Although he was asymptomatic, preoperative echocardiography and three-dimensional computed tomography scan found a large mass on the right atrium. He was diagnosed with a right atrial diverticulum and underwent surgical resection of the diverticulum because of the risk of thromboembolism, arrhythmia and rupture of the diverticulum. Intra-operative finding was compatible with the feature of a diverticulum which includes thin wall and large space inside the diverticulum. Postoperative pathological examination showed a thin diverticulum wall consisting of only fibrous tissue and intima without muscular tissue. We concluded that a large diverticulum should be treated surgically because of the critical complications.
authors.affiliation: Department of Cardiovascular Surgery, Tokyo Women's Medical University, Tokyo, Japan. agematsuagain@yahoo.co.jp
authors.forename: Kota
authors.initials: K
authors.lastname: Agematsu
authors.forename: Toru
authors.initials: T
authors.lastname: Okamura
authors.forename: Kazuaki
authors.initials: K
authors.lastname: Ishihara
authors.forename: Hiromi
authors.initials: H
authors.lastname: Kurosawa