title: Arteriovenous hemangioma in the middle mediastinum: report of a case.
abstract: Hemangiomas in the mediastinum are uncommon, and the majority of these tumors are located in the anterior mediastinum. The present report describes an extremely rare case of a hemangioma in the middle mediastinum. A 40-year-old male patient presented with a mass in the left lower lung field on radiographic screening. Chest computed tomography and magnetic resonance imaging revealed a mass measuring 2.5 cm in diameter, which was close to the descending aorta in the left middle mediastinum. The tumor resection was performed by video-assisted thoracic surgery. The thoracoscopic findings revealed a blackish brown mass with a capsule, which had not invaded the descending aorta or cardiac sac. Histologically, the tumor was composed of typical thick-walled vessels and was therefore classified as an arteriovenous hemangioma.
authors.affiliation: Department of Thoracic Surgery, Social Insurance Central General Hospital, 1-22-3 Hyakunin-cho, Shinjuku-ku, Tokyo, 169-0073, Japan.
authors.forename: Eiki
authors.initials: E
authors.lastname: Mizutani
authors.forename: Riichiro
authors.initials: R
authors.lastname: Morita
authors.forename: Shigehiro
authors.initials: S
authors.lastname: Kitamura
mesh_terms: D000328:Adult; D006391:Hemangioma / Q000175:diagnosis / Q000601:surgery*; D006801:Humans; D008297:Male; D008479:Mediastinal Neoplasms / Q000175:diagnosis / Q000601:surgery*; D008482:Mediastinum; D020775:Thoracic Surgery, Video-Assisted