title: Echo-enhancing sonography of a large-vessel hemangioma of the neck.
abstract: Because of the slow flow in the venous spaces of large-vessel hemangiomas, demonstration of color flow signals with conventional color Doppler or power Doppler sonography may be difficult. We report the case of a 22-year-old female patient with a soft tissue tumor containing multiple fluid-filled spaces in the right supraclavicular region. Gray-scale, color, and power Doppler sonography could not differentiate between cystic lymphangioma and large-vessel hemangioma. The intravenous echo-enhancing contrast agent Levovist was administered, and a significant echo-enhancing effect on color and power Doppler imaging was demonstrated in the fluid-filled spaces and lasted for about 3 minutes. Histopathologic study of the excised tumor confirmed the sonographic diagnosis of hemangioma. Levovist appears useful in depicting slow flow in a large-vessel hemangioma.
authors.affiliation: Department of Radiology, Veterans General Hospital-Taipei and National Yang-Ming University, School of Medicine, Taipei 112, Taiwan.
authors.forename: Y H
authors.initials: YH
authors.lastname: Chou
authors.forename: C M
authors.initials: CM
authors.lastname: Tiu
authors.forename: H J
authors.initials: HJ
authors.lastname: Chiou
authors.forename: C R
authors.initials: CR
authors.lastname: Lai
authors.forename: C C
authors.initials: CC
authors.lastname: Hsu
authors.forename: C
authors.initials: C
authors.lastname: Yu
mesh_terms: D000328:Adult; D003287:Contrast Media; D003937:Diagnosis, Differential; D005260:Female; D006258:Head and Neck Neoplasms / Q000000981:diagnostic imaging*; D006391:Hemangioma / Q000000981:diagnostic imaging*; D006801:Humans; D018191:Lymphangioma, Cystic / Q000000981:diagnostic imaging; D011134:Polysaccharides; D018615:Ultrasonography, Doppler, Color
chemical_list: D003287:Contrast Media; D011134:Polysaccharides; C059891:SHU 508