Megacystis-Microcolon-Intestinal Hypoperistalsis Syndrome 2, is also known as mmihs2. An important gene associated with Megacystis-Microcolon-Intestinal Hypoperistalsis Syndrome 2 is MYH11 (Myosin Heavy Chain 11). Affiliated tissues include smooth muscle, and related phenotypes are sensorineural hearing impairment and patent ductus arteriosus