Polymicrogyria- A Case Report

Introduction-Polymicrogyria is a malformation of cortical development in which the process normal cerebral disturbed late stage neuronal migration. Deeper layers cortex develop abnormally and multiple small gyri form within cortex. Polymicrogyria (PMG) characterized by supernumerary, with abnormal lamination. Malformations (MCD) comprise large group disorders resulting from defects formation that involve all major stages including neurogenesis, migration, postmigrational development. Case report- During routine dissection department anatomy ,Gauhati Medical College & Hospital Gauhati, we found specimen brain extra other than anatomical gyri. They are lobes frontal near sylvian fissure below inferior gyri, parietal lobes, occipital temporal .There places where have some fused sulci . Conclusion- From above case report can come to diagnosis delayed mental as well cause seizure episodes patients when there be no predisposing etiological factors presence structural changes. Key words- malformations, migrations, defects, mental, seizure, gyria.