<unk>  <unk>  refers to a heterogenous group of disorders that, it is supposed, share the same etiopathological mechanism: a variable degree of disruption in the<unk>  of neuroblasts during neurogenesis. The<unk> s are termed cerebral dysgenesis disorders, brain malformations caused by primary alterations during neurogenesis; on the other hand, brain malformations are highly diverse and refer to any insult to the brain during its formation and maturation due to intrinsic or extrinsic causes that ultimately will alter the normal brain anatomy. However, there is some controversy in the terminology because virtually any malformation will involve neuroblast<unk> , either primarily or secondarily.
Neuronal migration disorder
Developmental regression
Peroxisomal disorder
Cranio-lenticulo-sutural dysplasia
Developmental disorder
Neuroectodermal neoplasm
Caudal regression syndrome
Trinucleotide repeat disorder