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Brain stem and cerebellar hyperintense lesions in migraine.
Kruit, Mark C Launer, Lenore J Ferrari, Michel D Buchem, Mark A van
Kruit, Mark C
Launer, Lenore J
Ferrari, Michel D
Buchem, Mark A van
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Open Access
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Article
Language
en
Date of publication
2006-04-01
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Brain stem and cerebellar hyperintense lesions in migraine.
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Abstract
BACKGROUND AND PURPOSE: Migraineurs are at increased risk of cerebellar infarcts and supratentorial white matter lesions. The prevalence, frequency, and distribution of infratentorial hyperintense lesions in migraine are unknown. METHODS: Migraineurs with aura (n=161), without aura (n=134), and controls (n=140) from a population-based sample of adults (30 to 60 years of age) were evaluated with MRI. RESULTS: Infratentorial hyperintensities were identified in 13 of 295 (4.4%) migraineurs and in 1 of 140 (0.7%) controls (P=0.04). Twelve cases had hyperintensities, mostly bilaterally, in the dorsal basis pontis. Those with infratentorial hyperintensities also had supratentorial white matter lesions more often. CONCLUSIONS: We found an increased prevalence of infratentorial (mostly pontine) hyperintensities in migraineurs from the general population. This extends the knowledge about vulnerable brain regions and type of lesions in migraine brains. A hemodynamic ischemic pathogenesis is likely, but further research is needed.