These factors include an association with developmental delay and static focal neurologic deficits, frequent seizures from an early onset or focal status epilepticus. The severity of seizures also varies enormously. [neurocirugia-princesa.net]

Developmental delay, cognitive disability, and focal neurological deficits are only observed with extensive dysplasias. Early seizure onset has been associated with infantile spasms with asymmetrical or focal features [Guerrini and Filippi, 2005]. [karger.com]

 Early hypotonia, later spastic quadriplegia and opisthotonus. 8. Subcortical band heterotopia-Double cortex Sub-cortical, symmetric, circumferential bands of gray matter, separated from cortex by thin band of white matter. [slideshare.net]