This large family of diseases overlaps with other conditions including ' double cortex syndrome ' or subcortical band heterotopia.
More subtle abnormalities such as focal nodular heterotopia and band heterotopia may only be apparent if optimal MRI techniques are used.
They did say Chloe has gray matter heterotopia (gray matter floating in her brain ).
Microscopically, the cortex is poorly organized; it has four primitive layers and diffuse neuronal heterotopia.
Exploring white matter tracts in band heterotopia using diffusion tractography.