We report on 3 patients with complicated migraine of childhood. Family history was positive for migraine in each case, and all experienced the acute onset pf neurologic deficits in associated with throbbing hemicranium. Abnormalities of cerebral blood flow determinations, electroencephalograms and cerebral arteriograms in addition to persistent neurologic sequelae were demonstrated. We propose that complicated migraine of childhood is not an entirely benign symptom complex.