title: Idiopathic reversible cerebral vasoconstriction syndrome (RCVS).
abstract: Reversible cerebral vasoconstriction syndrome is characterised by severe thunderclap headache with associated characteristic transient, multifocal, segmental vasoconstriction of cerebral arteries lasting several weeks to months. We describe a 50-years old woman who presented with a severe sudden onset occipital headache. Neuroimaging revealed segmental vasospasm affecting the intracerebral arteries. The pain improved gradually over the next 6 weeks. Repeat brain MR angiography at 12 weeks showed complete resolution of the segmental narrowing.
authors.affiliation: Department of Internal Medicine, University Hospital Limerick, Limerick, Ireland.
authors.forename: Tarig Mohammed
authors.initials: TM
authors.lastname: Abkur
authors.affiliation: Department of Internal Medicine, University Hospital Limerick, Limerick, Ireland.
authors.forename: Mamoun
authors.initials: M
authors.lastname: Saeed
authors.affiliation: Department of Internal Medicine, University Hospital Limerick, Limerick, Ireland.
authors.forename: Nidal Osman
authors.initials: NO
authors.lastname: Alfaki
authors.affiliation: Department of Internal Medicine, University Hospital Limerick, Limerick, Ireland.
authors.forename: Margaret
authors.initials: M
authors.lastname: O'Connor
mesh_terms: D002533:Cerebral Angiography; D002536:Cerebral Arteries / Q000000981:diagnostic imaging; D003937:Diagnosis, Differential; D005260:Female; D051270:Headache Disorders, Primary / Q000000981:diagnostic imaging / Q000209:etiology*; D006801:Humans; D008875:Middle Aged; D013577:Syndrome; D020301:Vasospasm, Intracranial / Q000150:complications* / Q000000981:diagnostic imaging*