title: Type 1 sirenomelia in one of male twins, with imperforate anus in the other male twin.
abstract: The etiology of sirenomelia sequence is still obscure. The role of maternal diabetes and a vascular steal phenomenon have been discussed [Gürakan et al. (1996) Turk J Pediatr 38:393-397]. Discordant monozygotic twin sirenomelia has been commonly reported but only rarely in dizygotic twins. The family of the presented twins had a high risk of diabetes mellitus. One of the twins has type 1 sirenomelia and the other had only an imperforate anus.
authors.forename: F
authors.initials: F
authors.lastname: Akbiyik
authors.forename: S
authors.initials: S
authors.lastname: Balci
authors.forename: I
authors.initials: I
authors.lastname: Akkoyun
authors.forename: D
authors.initials: D
authors.lastname: Aktaş
authors.forename: O
authors.initials: O
authors.lastname: Cakmak
mesh_terms: D001006:Anus, Imperforate / Q000473:pathology*; D004200:Diseases in Twins; D004480:Ectromelia / Q000473:pathology*; D006801:Humans; D007231:Infant, Newborn; D008297:Male; D014429:Twins, Dizygotic