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Published on: May 23, 2013
[Downbeat nystagmus and vertebrobasilar arterial dolichoectasia]
Y Krespi1, P Verstichel, C Masson
1Clinique Neurologique, Hôpital Beaujon, Clichy.
Abstract:
A 66-year-old man presented with a downbeat nystagmus. The underlying cause was unknown. A dolichoectasia of the vertebrobasilar artery was the only identifiable abnormality at Magnetic Resonance Image which also disclosed distortion of the anterolateral aspect of the medulla. Compression of the caudal brain-stem by an enlarged and tortuous vertebrobasilar arterial system may be the cause of downbeat nystagmus in cases unassociated with the more commonly recognized causes.
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