title: Anencephaly with holoprosencephalic facies due to ring chromosome 18.
abstract: An anencephalic infant with holoprosencephalic facies and ring chromosome 18 [r(18)] is reported with review of the pertinent literature. Although the association of anencephaly and holoprosencephalic facies is well established, this is the first instance of an accompanying karyotypic abnormality. Review of other r(18) cases suggests that this is not a coincidental finding. Karyotype analysis appears warranted in cases of anencephaly with holoprosencephalic facies.
authors.affiliation: Children's Hospital, Division of Dysmorphology/Genetics, San Diego, CA, USA. Lynnembird@aol.com
authors.forename: L M
authors.initials: LM
authors.lastname: Bird
authors.forename: D H
authors.initials: DH
authors.lastname: Pretorius
authors.forename: A E
authors.initials: AE
authors.lastname: Mendoza
authors.forename: M C
authors.initials: MC
authors.lastname: Jones
mesh_terms: D000757:Anencephaly; D002887:Chromosomes, Human, Pair 18; D005145:Face / Q000002:abnormalities; D005260:Female; D016142:Holoprosencephaly; D006801:Humans; D007231:Infant, Newborn; D012303:Ring Chromosomes