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Magnetic resonance imaging of thoracic epidural venous dilation in Hirayama disease.

Authors
  • 1
  • 1 Department of Neurology, Mayo Clinic, Jacksonville, FL, USA.
Type
Published Article
Journal
Neurology
1526-632X
Publisher
Ovid Technologies (Wolters Kluwer) - American Academy of Neurology
Publication Date
Volume
62
Issue
8
Pages
1426–1428
Identifiers
PMID: 15111690
Source
Medline
License
Unknown

Abstract

Hirayama disease is a nonprogressive, asymmetric amyotrophy of the hands and forearms, possibly caused by compression of the lower cervical cord on neck flexion. The authors used phase-contrast MR angiography to study a patient with this disorder and observed abnormal spinal epidural venous dilation on neck flexion. In addition to mechanical compression of the lower cervical cord, venous congestion in the spinal canal may have a role in promoting anterior horn damage.

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