Reversible cerebral vasoconstriction syndrome

In neurology, reversible cerebral vasoconstriction syndrome (RCVS) is a condition characterized by:


 * focal neurological deficits
 * history of vasconstrictive drug use
 * "multifocal, usually bilateral, segmental vasoconstriction and vasodilatation"
 * thunderclap headache

RCVS is similar to posterior leukoencephalopathy syndrome.