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Early fetal presentation of Koolen-de Vries: Case report with literature review.

Authors
  • Sauvestre, Fanny1
  • Marguet, Florent2
  • Rooryck, Caroline3
  • Vuillaume, Marie-Laure3
  • Cardinaud, Frédéric4
  • Laquerrière, Annie2
  • André, Gwenaëlle5
  • Pelluard, Fanny5
  • 1 Department of Pathology, Bordeaux University Hospital, Pellegrin Hospital, Bordeaux, France. Electronic address: [email protected] , (France)
  • 2 Normandie Univ, UNIROUEN, INSERM U1245, Rouen University Hospital, Department of Pathology, Rouen, France. , (France)
  • 3 Department of Medical Genetics, Centre de Référence des Anomalies Du Développement Embryonnaire, Bordeaux University Hospital, Pellegrin Hospital, Bordeaux, France. , (France)
  • 4 Department of Ultrasonography, MSP Bagatelle, Talence, France. , (France)
  • 5 Department of Pathology, Bordeaux University Hospital, Pellegrin Hospital, Bordeaux, France. , (France)
Type
Published Article
Journal
European journal of medical genetics
Publication Date
Nov 01, 2017
Volume
60
Issue
11
Pages
605–609
Identifiers
DOI: 10.1016/j.ejmg.2017.08.012
PMID: 28811189
Source
Medline
Keywords
License
Unknown

Abstract

Koolen-de Vries syndrome (MIM#610443) is a rare microdeletion syndrome involving the 17q21.31 region, which was first described by Koolen in 2006. Clinical and behavioral characteristics have been extensively reported from more than 100 postnatal cases including infants, children and young adults. The syndrome is highly clinically heterogeneous, but the main features associate characteristic cranio-facial dysmorphism, heart defects, limb, skeletal, genito-urinary anomalies, along with intellectual disability with early childhood epilepsy and behavioral disturbances. Central nervous system malformations usually consist in hydrocephalus and thin corpus callosum. We report herein an early fetal case with an apparently isolated abnormal corpus callosum diagnosed by ultrasonography, for which a medical termination of the pregnancy was achieved at 22 weeks of gestation. Postmortem examination displayed facial dysmorphism consisting of hypertelorism, short philtrum and flat and broad nose, cleft palate and left duplex ureter. Neuropathological examination revealed a mega corpus callosum that has never been reported so far in this syndrome. Array-CGH performed on thymic DNA tissue revealed a 17q21.31 microdeletion, which allowed for the confirmation of early occurring Koolen-de Vries syndrome.

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