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Thirty-two had a single widespread cortical dysplastic lesion. Twenty-eight had focal corticectomies. From a pathological standpoint, these encompassed focal cortical dysplasia (14 cases) and forme fruste of tuberous sclerosis (10 cases). These two groups of patients were indistinguishable from the clinical and radiological standpoint. In only two was the MRI examination normal. In addition, there were 10 with bilateral perisylvian dysplasia, four with diffuse cortical dysplasia or the \"double cortex\" syndrome, three with hemimegalencephaly, one with megalencephaly, and one with nodular neuronal heterotopia. The electroclinical and imaging findings led to the development of specific surgical strategies for the alleviation of the intractable seizures in each of these radiologically-defined syndromes.<\/jats:p>","DOI":"10.1017\/s0317167100032753","type":"journal-article","created":{"date-parts":[[2016,7,28]],"date-time":"2016-07-28T11:42:26Z","timestamp":1469706146000},"page":"580-587","source":"Crossref","is-referenced-by-count":91,"title":["Neuronal Migration Disorders: A Contribution of Modern Neuroimaging to the Etiologic Diagnosis of Epilepsy"],"prefix":"10.1017","volume":"18","author":[{"given":"Andr\u00e9","family":"Palmini","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Frederick","family":"Andermann","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Andr\u00e9","family":"Olivier","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Donatella","family":"Tampieri","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yvon","family":"Robitaille","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Denis","family":"Melanson","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Romeo","family":"Ethier","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"56","published-online":{"date-parts":[[2015,9,18]]},"reference":[{"key":"S0317167100032753_ref007","doi-asserted-by":"publisher","DOI":"10.1097\/00004728-198709000-00026"},{"key":"S0317167100032753_ref024","first-page":"44","article-title":"Clinical manifestations and causal heterogeneity in isolated lissencephaly sequence","volume":"44","author":"Dobyns","year":"1989","journal-title":"Am J Hum Genet"},{"key":"S0317167100032753_ref026","first-page":"327","volume-title":"Long-term Monitoring in Epilepsy","author":"Gotman","year":"1985"},{"key":"S0317167100032753_ref037","doi-asserted-by":"publisher","DOI":"10.1136\/jnnp.53.7.617"},{"key":"S0317167100032753_ref006","doi-asserted-by":"publisher","DOI":"10.1007\/BF02386836"},{"key":"S0317167100032753_ref008","doi-asserted-by":"publisher","DOI":"10.1002\/ana.410230402"},{"key":"S0317167100032753_ref010","doi-asserted-by":"publisher","DOI":"10.1017\/S031716710002610X"},{"key":"S0317167100032753_ref040","doi-asserted-by":"crossref","first-page":"18","DOI":"10.1126\/science.1135626","article-title":"Mechanical model of brain convolutional development","volume":"189","author":"Richman","year":"1975","journal-title":"Science"},{"key":"S0317167100032753_ref039","doi-asserted-by":"publisher","DOI":"10.1007\/BF00689761"},{"key":"S0317167100032753_ref042","doi-asserted-by":"publisher","DOI":"10.1212\/WNL.25.5.448"},{"key":"S0317167100032753_ref028","first-page":"299","volume-title":"Neurosurgical management of the epilepsies. 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