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Article
September 1944

VERTICAL NYSTAGMUS PRODUCED BY PERIPHERAL LABYRINTHINE LESIONS

Author Affiliations

PHILADELPHIA; WASHINGTON, D. C.
From the Department of Experimental Neurology, Temple University School of Medicine.

Arch Otolaryngol. 1944;40(3):160-163. doi:10.1001/archotol.1944.00680020214002
Abstract

Vertical nystagmus is generally considered one of the most important signs in arriving at a differential diagnosis between a lesion of the peripheral labyrinth and a lesion of its central nuclei and pathways. As a rule, vertical nystagmus appears nearly exclusively in the latter group, and a lesion restricted to the vertical canals so that vertical nystagmus is produced is exceptionally rare. In former publications1 we pointed to the necessity of revising the view that vertical nystagmus indicates only a lesion of the cranial part of the vestibular nuclei. We were able to demonstrate that such a nystagmus may also be produced by cerebellar lesions, particularly those affecting the lobus posterior medianus. The present study is a further contribution to the differential diagnostic significance of vertical nystagmus in that it demonstrates various types of peripheral labyrinthine lesions that may produce this form of nystagmus.

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