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Washington University Experience | DEVELOPMENTAL MALFORMATIONS | Hemimegalencephaly | 7D Hemimegalencephaly (Case 8) leptomeningeal heterotopia
The pattern is not uniform with areas of polymicrogyria, cortical dysplasia with neuronal gigantism without balloon cells (ILAE pattern IIA), and leptomeningeal glioneuronal heterotopias (#7D) in which the pia is marked by arrowheads. (H&E)
