Abnormal vascular drainage in anomalies of neuronal migration.
Four patients are presented who had apparently anomalous vascular channels that were initially erroneously interpreted as vascular malformations. These vascular channels represent the normal venous drainage of a pachygyric cortex. The recognition of this finding as a manifestation of the underlying abnormal neuronal migration is important in order to avoid further intervention in these patients.
D000328:Adult; D001921:Brain / Q000002:abnormalities*; D002533:Cerebral Angiography; D002550:Cerebral Veins / Q000033:anatomy & histology*; D002648:Child; D003937:Diagnosis, Differential; D006801:Humans; D007223:Infant; D002538:Intracranial Arteriovenous Malformations / Q000175:diagnosis*; D008279:Magnetic Resonance Imaging