Microcephaly-Polymicrogyria-Corpus Callosum Agenesis Syndrome is related to microcephaly and congenital nervous system abnormality. An important gene associated with Microcephaly-Polymicrogyria-Corpus Callosum Agenesis Syndrome is EOMES (Eomesodermin). Affiliated tissues include brain and cerebellum, and related phenotypes are agenesis of corpus callosum and ventriculomegaly