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Downbeat nystagmus caused by a paramedian ponto-medullary lesion.
- Source :
-
Journal of neurology [J Neurol] 2009 Sep; Vol. 256 (9), pp. 1572-4. Date of Electronic Publication: 2009 May 05. - Publication Year :
- 2009
-
Abstract
- Downbeat nystagmus (DBN) is rarely caused by lesions in sites other than the cerebellar (para-)floccular lobe. We describe a case of DBN secondary to a hemorrhaged venous cavernoma at the pontomedullary junction. This case provides new insights into the neuro-anatomical substrate of DBN. We propose that DBN arises from lesions in a brainstem-cerebellar feedback loop, which comprises cells of the pontine paramedian tract (PMT).
- Subjects :
- Central Nervous System Vascular Malformations complications
Central Nervous System Vascular Malformations pathology
Eye Movement Measurements
Eye Movements
Humans
Magnetic Resonance Imaging
Male
Middle Aged
Brain Stem pathology
Intracranial Hemorrhages complications
Intracranial Hemorrhages pathology
Nystagmus, Pathologic etiology
Nystagmus, Pathologic pathology
Subjects
Details
- Language :
- English
- ISSN :
- 1432-1459
- Volume :
- 256
- Issue :
- 9
- Database :
- MEDLINE
- Journal :
- Journal of neurology
- Publication Type :
- Report
- Accession number :
- 19415412
- Full Text :
- https://doi.org/10.1007/s00415-009-5153-z