Reversible hemianopsia caused by mechanical compression of the visual pathway by the dilated draining vein of an arteriovenous malformation--case report.

• 影响指数: 2.036
• 发表时间: 2010
• 来源期刊: Neurol Med Chir (Tokyo)
• DOI: 10.2176/nmc.50.475
• PMID: 20587972
• 文章类型: Case Reports
• 中科院分区: Q4
• 方向: 医学
• 作者列表: Takigawa T,Matsumaru Y,Hayakawa M,Fukuhara N,Usui M,Matsumura A

Mesh: Adult; Cerebral Veins / diagnostic imaging pathology surgery; Female; Geniculate Bodies / pathology surgery; Hemianopsia / etiology pathology surgery; Humans; Intracranial Arteriovenous Malformations / complications pathology surgery; Magnetic Resonance Imaging; Radiography; Visual Pathways / blood supply pathology surgery

Abstract

A 41-year-old woman presented with progressive hemianopsia caused by compression of the lateral geniculate body by the dilated basal vein draining a contralateral frontal arteriovenous malformation (AVM). Magnetic resonance (MR) imaging revealed left frontal AVM and right lateral geniculate body compression due to the dilated basal vein. Emergent presurgical transarterial embolization and surgical removal were performed. Left hemianopsia completely recovered 3 months after surgery and MR imaging indicated improvement of the compression of the lateral geniculate body. Direct mechanical compression of the enlarged drainage vein is one of the causes of homonymous hemianopsia. Early surgical treatment is recommended to obtain a rapid recovery.