We discuss four patients with the clinical diagnosis of basilar migrai
ne and suspected coexisting epilepsy who were referred to our epilepsy
center. Their symptoms suggested episodic dysfunction in the distribu
tion of the basilar artery, followed by pulsating headache with nausea
. Verbal unresponsiveness and sensory symptoms occurred in all four pa
tients; two also had focal paresis or jerking movements. Diagnostic st
udies excluded other disorders with similar symptoms. None of the pati
ents improved with antimigraine or antiepileptic drugs. Provocation te
sts with suggestion elicited typical events in three patients and aura
and headache in one patient. There were no EEG or ECG abnormalities d
uring spontaneous or provoked episodes. Two patients improved with psy
chiatric treatment. Conversion disorder or malingering should be consi
dered in patients whose symptoms of basilar migraine are atypical or r
efractory to treatment.