RT Journal Article SR Electronic T1 External Jugular Vein Vascular Malformation: Sonographic and MR Imaging Appearances JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology SP 338 OP 342 VO 25 IS 2 A1 Ahuja, Anil T. A1 Yuen, Hok-Yuen A1 Wong, Ka-Tak A1 King, Ann D. A1 Abdullah, Victor A1 To, Edward A1 Chau, Yuk-Ping A1 Ma, Kwok-Fai YR 2004 UL http://www.ajnr.org/content/25/2/338.abstract AB Summary: Vascular malformations arising from the wall of the external jugular vein are rare. This case series discusses the sonographic and MR imaging appearances of four such cases and reviews the literature. The diagnosis should be suggested preoperatively particularly because of the close relationship such malformations to the external jugular vein, as this helps surgeons to plan the operative procedure. The imaging appearances are similar to those of other vascular malformations elsewhere in the head and neck.