In a patient with holoprosencephaly, partial seizures had various initial ictal symptoms, and ictal EEGs showed epileptogenic foci in the right and left brain. Partial seizures did not culminate in secondary generalized tonic–clonic convulsions. Characteristic malformed structures contribute to the absence of secondary generalization and the presence of Jacksonian-type propagation.
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Accepted: April 9, 2001
Received in revised form: April 3, 2001
Received: March 21, 2000
© 2001 Elsevier Science B.V. Published by Elsevier Inc. All rights reserved.