syndromic anorectal malformation (EFO_0700030) is anorectal malformations (ARMs) represent a complex group of congenital anomalies resulting from abnormal development of the hindgut, allantois and Mullerian duct resulting in complete or partial urorectal septal malformations. 50 % of cases are syndromic although many may have other associated anomalies. Also known as: syndrome associated with anorectal malformation.