J Korean Neurol Assoc.
2005 Dec;23(6):827-829.
Periodic Alternating Nystagmus from Focal Cerebellar Lesion
- Affiliations
-
- 1Department of Neurology, Seoul National University College of Medicine, Seoul, Korea. jisookim@snu.ac.kr
- 2Department of Neurology, Dong-a University College of Medicine, Busan, Korea.
Abstract
- Periodic alternating nystagmus (PAN) is characterized by a periodical reversal in the direction of the nystagmus. PAN has rarely been reported in discrete cerebellar lesions. We report a patient with PAN from a focal cerebellar lesion, which developed after removal of an ependymoma in the fourth ventricle. The nystagmus decreased upon tilting the head in the direction of the nystagmus. The positional modulation of the nystagmus supports that PAN occurs from an abnormal velocity storage mechanism.
Keyword
- Full Text Links
-
- Actions
-
Cited
- CITED
-
- Close
- Share
-
- Similar articles
-
- Acquired Periodic Alternating Nystagmus
- Periodic Alternating Nystagmus in Patients with Cerebellar Abscess
- A Case of Isolated Cerebellar Nodulus Infarction with Periodic Alternating Nystagmus and Unilateral Vestibulopathy
- Periodic Alternating Nystagmus
- Central Positional Nystagmus in Focal Dentate Nucleus Lesion
