The abnormal patterns of cerebral convolutions range from severe to small anomalies restricted to tertiary gyri and sulci. Lesions within Glial–Pial barrier were found in examined cases with cortical developmental abnormalities. Anomalies and impaired function of vessels penetrating the cortex from meningeal plexus coexisted often with Glial–Pial barrier lesions. We are able to say that our cases constitute a group of graded changes demonstrating that both observed developmental lesions vascular and/or Glial–Pial barrier damage may result in cortical anomalies. Their formation and character depend on the stage of cortical maturation when analyzed lesions occur.
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Accepted: April 2, 2001
Received in revised form: April 2, 2001
Received: November 17, 2000
© 2001 Elsevier Science B.V. Published by Elsevier Inc. All rights reserved.