BORCS5 and polymicrogyria: A recent study revealed the presence of a single-nucleotide, splice-acceptor variant (NM_058169.4:c.203–1G>T) of BORCS5 in a patient with global developmental delay, corpus callosum agenesis, seizures, polymicrogyria, and abnormality of the cerebral cortex (Charng et al., 2016).