[Is there a connection between epilepsy and migraine?]

Sometimes it is difficult to distinguish between epilepsy and migraine on purely clinical basis. To illustrate some of these difficulties, the cases of three patients are described. The first patient had both epilepsy and migraine with aura, the second patient had paroxysmal headache as a part of an ictal, epileptic event, and the third patient presented a more complex clinical picture due to post traumatic encephalopathy. The paper deals with possible genetic, causal and EEG-related features which migraine and epilepsy have in common.