Abnormal neuron migration

Abnormal neuronal migration refers to that during the development of the cerebral cortex, neuroblasts are blocked from migrating from the embryonic germinal matrix to the surface of the brain due to various reasons, leading to developmental abnormalities of brain tissues to varying degrees, including anencephaly-giant brain gyrus Malformations, ectopic gray matter, schizocephaly, multiple cerebellar gyrus, hemimegalocephaly, and local cortical dysplasia. Each type has specific etiology, pathological changes, and imaging characteristics.