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Subcortical band heterotopia (microscopic appearance of subcortical heterotopic neurons)

The heterotopic neurons are scattered in the subcortical white matter. The majority of the large pyramidal neurons in the heterotopia are oriented radially, recapitulating the orientation of the neurons in the outer cortex (white arrows indicate the orientation of selected pyramidal neurons). (Size bar = 0.1 mm) (Contributed by Dr. Joseph Gleeson.)

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Associated Disorders

  • Developmental delay
  • Epilepsy
  • Mental retardation