title: Aortic root subadventitial hematoma.
abstract: A 51-year-old woman was operated on for aortic valve regurgitation 3 months after experiencing chest tightness awakening her from sleep. Intraoperative findings included turbid dark brown pericardial fluid and a nipple-shaped protrusion on the external aspect of the noncoronary sinus of Valsalva. Histologically, the lesion was enclosed by intact media and adventitia, and represented an organized hematoma. Dilated venules noted adjacent to the lesion were suggestive of an intramural hemangioma. The etiology of this lesion is unclear, but it might be an unusual type of intramural hematoma (IMH) and gives us a hint of an origin of IMH.
authors: Department of Cardiovascular Surgery, Faculty of Medicine, Oita University, Hasama-machi, Oita 879-5593, Japan. smiyamot@med.oita-u.ac.jp
authors: Shinji
authors: S
authors: Miyamoto
authors: Tetsuo
authors: T
authors: Hadama
authors: Eriko
authors: E
authors: Iwata
authors: Hirofumi
authors: H
authors: Anai
authors: Hidenori
authors: H
authors: Sako
authors: Tomoyuki
authors: T
authors: Wada
authors: Hideyuki
authors: H
authors: Tanaka
authors: Hirotsugu
authors: H
authors: Hamamoto
authors: Naoki
authors: N
authors: Hijiya
mesh_terms: D001021:Aortic Valve / Q000473:pathology*; D001022:Aortic Valve Insufficiency / Q000209:etiology; D005260:Female; D006349:Heart Valve Diseases / Q000150:complications / Q000473:pathology*; D006406:Hematoma / Q000150:complications / Q000473:pathology*; D006801:Humans; D008875:Middle Aged