title: Lymphatic and venous malformation or "lymphangiohemangioma" of the anterior mediastinum: case report and literature review.
abstract: Lymphatic and venous malformations (LVM) are tumor-like lesions combining dysplastic lymphatic and venous vessel structures. They are rarely found in the mediastinum. We present a case of mediastinal LVM, with review of the literature. An asymptomatic 60-yearold man presented for evaluation of an anterior mediastinal mass. On chest computed tomography (CT), the mass demonstrated contrast enhancement and its 7-mm vein draining directly into the left brachiocephalic vein. The tumor was resected completely using video-assisted thoracoscopic surgery. The surgical specimen revealed combined features of venous and lymphatic dysplasia, and was diagnosed it as LVM, so-called mediastinal lymphangiohemangioma. Management plans based on precise imaging studies using magnetic resonance imaging and multi-detector-row CT phlebography could be helpful in guiding both preoperative diagnosis and subsequent treatment decisions for mediastinal LVM.
authors.affiliation: Department of General Thoracic Surgery, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka, Japan. yskadota@thoracic.med.osaka-u.ac.jp.
authors.forename: Yoshihisa
authors.initials: Y
authors.lastname: Kadota
authors.forename: Tomoki
authors.initials: T
authors.lastname: Utsumi
authors.forename: Tomohiro
authors.initials: T
authors.lastname: Kawamura
authors.forename: Masayoshi
authors.initials: M
authors.lastname: Inoue
authors.forename: Noriyoshi
authors.initials: N
authors.lastname: Sawabata
authors.forename: Masato
authors.initials: M
authors.lastname: Minami
authors.forename: Meinoshin
authors.initials: M
authors.lastname: Okumura
mesh_terms: D058070:Asymptomatic Diseases; D001706:Biopsy; D006391:Hemangioma / Q000175:diagnosis* / Q000601:surgery; D006801:Humans; D007150:Immunohistochemistry; D008202:Lymphangioma / Q000175:diagnosis* / Q000601:surgery; D044148:Lymphatic Abnormalities / Q000175:diagnosis* / Q000601:surgery; D008297:Male; D008479:Mediastinal Neoplasms / Q000175:diagnosis* / Q000601:surgery; D008482:Mediastinum / Q000098:blood supply* / Q000601:surgery; D008875:Middle Aged; D020775:Thoracic Surgery, Video-Assisted; D014057:Tomography, X-Ray Computed; D016896:Treatment Outcome; D054079:Vascular Malformations / Q000175:diagnosis* / Q000601:surgery; D014680:Veins / Q000002:abnormalities