Neurodevelopmental Disorder with Midbrain and Hindbrain Malformations, is also known as nedmhm. An important gene associated with Neurodevelopmental Disorder with Midbrain and Hindbrain Malformations is ARHGEF2 (Rho/Rac Guanine Nucleotide Exchange Factor 2). Affiliated tissues include pons and brain, and related phenotypes are intellectual disability and hypotonia