title: Mandibular arteriovenous malformation diagnosed by MR and MRA: a case report.
abstract: A case of mandibular arteriovenous malformation (AVM) is presented. Prompt diagnosis and appropriate management are essential due to massive bleeding or even death after dental extraction or biopsy. Angiography remains the gold standard in detecting the lesion. Magnetic resonance (MR) imaging with spin-echo sequences reveals the vascular malformation as signal-void. MR angiography can demonstrate the nidus, dilated artery and vein. MR imaging and MR angiography can supplement angiography in the diagnosis of mandibular AVM.
authors.affiliation: Department of Radiology, Kaohsiung Medical College, Taiwan, Republic of China.
authors.forename: K W
authors.initials: KW
authors.lastname: Yeung
authors.forename: G C
authors.initials: GC
authors.lastname: Liu
authors.forename: M S
authors.initials: MS
authors.lastname: Chou
authors.forename: D K
authors.initials: DK
authors.lastname: Wu
authors.forename: R S
authors.initials: RS
authors.lastname: Sheu
authors.forename: J M
authors.initials: JM
authors.lastname: Hong
authors.forename: H R
authors.initials: HR
authors.lastname: Chen
mesh_terms: D001165:Arteriovenous Malformations / Q000175:diagnosis*; D002648:Child; D005260:Female; D006801:Humans; D018810:Magnetic Resonance Angiography; D008279:Magnetic Resonance Imaging; D008334:Mandible / Q000098:blood supply*