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Dandy-Walker (like) malformation, atrio-ventricular septal defect and a similar pattern of minor anomalies in 2 sisters: A new syndrome?


Ritscher, Daniel; Schinzel, Albert; Boltshauser, Eugen; Briner, Jakob; Arbenz, Urs; Sigg, Peter (1987). Dandy-Walker (like) malformation, atrio-ventricular septal defect and a similar pattern of minor anomalies in 2 sisters: A new syndrome? American Journal of Medical Genetics, 26(2):481-491.

Abstract

We report on sisters with similar craniofacial anomalies, a brain malformation in the area of the posterior fossa, and a congenital heart defect. The craniofacial findings include macrocephaly, a prominent forehead and occiput, foramina parietalia, hypertelorism, downslanting palpebral fissures, a depressed nasal bridge, narrow palate, and apparently low-set ears. Patient 1 had a Dandy-Walker malformation with communicating hydrocephalus, aplasia of the posterior portion of the cerebellar vermis, and high insertion of the confluent sinus, while in patient 2, a Dandy-Walker variant was found with aplasia of the cerebellar vermis and hypoplasia of the hemispheres, large cisterna magna, high insertion of the confluent sinus, but no hydrocephalus. Both sibs were moderately mentally retarded. The older sister had a complete atrio-ventricular canal and died after unsuccessful heart operation at 3 1/2 years. The younger had a successful operation on a cleft mitral valve and septum primum defect. Chromosomes were normal. The occurrence of a distinct and similar pattern of congenital anomalies in sisters born to healthy parents points toward a "new" syndrome caused by the homozygous state of an autosomal recessive gene.

Abstract

We report on sisters with similar craniofacial anomalies, a brain malformation in the area of the posterior fossa, and a congenital heart defect. The craniofacial findings include macrocephaly, a prominent forehead and occiput, foramina parietalia, hypertelorism, downslanting palpebral fissures, a depressed nasal bridge, narrow palate, and apparently low-set ears. Patient 1 had a Dandy-Walker malformation with communicating hydrocephalus, aplasia of the posterior portion of the cerebellar vermis, and high insertion of the confluent sinus, while in patient 2, a Dandy-Walker variant was found with aplasia of the cerebellar vermis and hypoplasia of the hemispheres, large cisterna magna, high insertion of the confluent sinus, but no hydrocephalus. Both sibs were moderately mentally retarded. The older sister had a complete atrio-ventricular canal and died after unsuccessful heart operation at 3 1/2 years. The younger had a successful operation on a cleft mitral valve and septum primum defect. Chromosomes were normal. The occurrence of a distinct and similar pattern of congenital anomalies in sisters born to healthy parents points toward a "new" syndrome caused by the homozygous state of an autosomal recessive gene.

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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:04 Faculty of Medicine > University Children's Hospital Zurich > Medical Clinic
04 Faculty of Medicine > Institute of Medical Genetics
04 Faculty of Medicine > University Hospital Zurich > Institute of Pathology and Molecular Pathology
Dewey Decimal Classification:610 Medicine & health
570 Life sciences; biology
Scopus Subject Areas:Health Sciences > Genetics (clinical)
Uncontrolled Keywords:Genetics (clinical), persistent atrio-ventricular canal, multiple congenital anomalies/mental retardation syndrome, MCA/MR syndrome, autosomal recessive inheritance
Language:English
Date:1 February 1987
Deposited On:27 Sep 2023 17:06
Last Modified:29 Apr 2024 01:40
Publisher:Wiley-Blackwell Publishing, Inc.
ISSN:0148-7299
OA Status:Closed
Publisher DOI:https://doi.org/10.1002/ajmg.1320260227
PubMed ID:3812597
Other Identification Number:Corpus ID: 32075807