Document Detail

Unique combination of hyperintense vessel sign on initial FLAIR and delayed vasoconstriction on MRA in reversible cerebral vasoconstriction syndrome: A case report.
MedLine Citation:
PMID:  24711608     Owner:  NLM     Status:  Publisher    
BACKGROUND: Reversible cerebral vasoconstriction syndrome is characterized by thunderclap headache and reversible cerebral vasoconstriction on angiographic findings. It can be difficult to diagnose when initial angiography is normal.
CASE RESULTS: A 30-year-old woman was admitted because of sudden-onset thunderclap headache and seizure on postpartum day 7. Brain MRI on fluid-attenuated inversion recovery (FLAIR) showed hyperintense vessel sign (HVS), which usually means slow flow due to severe proximal arterial stenosis. However, magnetic resonance angiography (MRA) indicated that proximal arteries was normal. After nicardipine treatment, her symptoms improved dramatically. Follow-up FLAIR on day 7 showed complete resolution of HVS, while a series of MRAs revealed reversible multifocal segmental vasoconstriction.
CONCLUSIONS: HVS on initial FLAIR is useful for an early diagnosis of reversible cerebral vasoconstriction syndrome. As the delayed vasoconstriction on MRA can be observed, reversible cerebral vasoconstriction syndrome may progress from distal small to proximal larger arteries.
Tomoaki Kameda; Michito Namekawa; Haruo Shimazaki; Daisuke Minakata; Tohru Matsuura; Imaharu Nakano
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2014-4-7
Journal Detail:
Title:  Cephalalgia : an international journal of headache     Volume:  -     ISSN:  1468-2982     ISO Abbreviation:  Cephalalgia     Publication Date:  2014 Apr 
Date Detail:
Created Date:  2014-4-8     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8200710     Medline TA:  Cephalalgia     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
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