Cerebrospinal-fluid abnormalities associated with migraine.

Cerebrospinal-fluid (CSF) abnormalities have been reported infrequently in patients with migraine. Four cases of CSF pleocytosis and raised pressure found in young women during the course of an attack of protracted prodromal migraine, which was followed by complete recovery, are reported. In the absence of any other detectable cause, the CSF changes were attributed to the effects of the migrainous process on meningeal vascular permeability.