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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
8
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pubmed:dateCreated |
1998-1-12
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pubmed:abstractText |
The neuropathology of narcolepsy is unknown. Recently, Plazzi et al. (1) reported magnetic resonance imaging (MRI) abnormalities in the pontine tegmentum of three patients with long-standing idiopathic narcolepsy. Considering the localization of the neuroradiological findings in the pontine reticular formation, where rapid eye movement (REM) sleep is generated, the authors suggested a causal relationship between narcolepsy and MRI abnormalities. Frey and Heiserman, however, found pontine MRI abnormalities in only two of 12 patients with narcolepsy both of whom had long-standing hypertension (2). Pullicino et al. noted similar pontine MRI abnormalities in patients with subcortical arteriosclerotic encephalopathy-like ischemic rarefaction of the pons (3). Thus, the changes noted by Plazzi et al. may have been caused by small-vessel disease rather than narcolepsy. To assess whether altered pontine MRI signals are a regular feature of idiopathic narcolepsy, we selected randomly from our database seven patients with narcolepsy with cataplexy. Of these seven, three agreed to have brain MRIs; their cases are described below. None had pontine MRI abnormalities.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Aug
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pubmed:issn |
0161-8105
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
20
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
630-1
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pubmed:dateRevised |
2009-1-29
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pubmed:meshHeading |
pubmed-meshheading:9351130-Adult,
pubmed-meshheading:9351130-Arteriosclerosis,
pubmed-meshheading:9351130-Brain Ischemia,
pubmed-meshheading:9351130-Central Nervous System Stimulants,
pubmed-meshheading:9351130-Female,
pubmed-meshheading:9351130-HLA-DR2 Antigen,
pubmed-meshheading:9351130-Humans,
pubmed-meshheading:9351130-Magnetic Resonance Imaging,
pubmed-meshheading:9351130-Middle Aged,
pubmed-meshheading:9351130-Narcolepsy,
pubmed-meshheading:9351130-Pons,
pubmed-meshheading:9351130-Positive-Pressure Respiration,
pubmed-meshheading:9351130-Reticular Formation,
pubmed-meshheading:9351130-Sleep, REM,
pubmed-meshheading:9351130-Sleep Apnea Syndromes
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pubmed:year |
1997
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pubmed:articleTitle |
MRI findings in narcolepsy.
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pubmed:affiliation |
Department of Neurology, University of Michigan Medical Center, Ann Arbor 48109-0316, USA.
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pubmed:publicationType |
Journal Article,
Case Reports
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