title: Aneurysm of the internal mammary artery with cystic medial degeneration.
abstract: We herein report the histopathology of a rare case of an idiopathic internal mammary artery aneurysm in a 61-year-old asymptomatic woman. Chest radiography during an annual medical check-up incidentally revealed the aneurysm, which was initially mistaken for a mediastinal tumor. Given that a rupture of the aneurysm could have been life-threatening, it was removed surgically, and found to possess a paper-thin arterial wall with cystic medial degeneration.
authors.affiliation: Department of Cardiology, Niigata Cancer Center Hospital, Japan. okuray@niigata-cc.jp
authors.forename: Yuji
authors.initials: Y
authors.lastname: Okura
authors.forename: Takashi
authors.initials: T
authors.lastname: Kawasaki
authors.forename: Tohru
authors.initials: T
authors.lastname: Hiura
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Seki
authors.forename: Hirofumi
authors.initials: H
authors.lastname: Saito
mesh_terms: D000783:Aneurysm / Q000000981:diagnostic imaging* / Q000601:surgery; D003560:Cysts / Q000000981:diagnostic imaging* / Q000601:surgery; D005260:Female; D006801:Humans; D008323:Mammary Arteries / Q000000981:diagnostic imaging* / Q000601:surgery; D008875:Middle Aged; D013902:Radiography, Thoracic; D014057:Tomography, X-Ray Computed; D016896:Treatment Outcome; D014656:Vascular Surgical Procedures