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Cetin EB, Bilgici MNC, Tuncer GO, Karabag IS, Aydin S. Syndrome of megalencephaly, mega corpus callosum, and complete lack of motor development: an unusual case and a literature review. Childs Nerv Syst 2024; 40:219-225. [PMID: 37688615 DOI: 10.1007/s00381-023-06150-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Accepted: 09/05/2023] [Indexed: 09/11/2023]
Abstract
The syndrome of megalencephaly, mega corpus callosum (MEG-MegaCC) accompanied by complete lack of motor development is a rare condition with only few sporadic cases having been reported in the literature. In this paper, we describe a child from non-consanguineous parents presenting with MegaCC, psychomotor retardation, and language impairment linked to MEG-MegaCC syndrome. Genetic analysis, radiological findings, and detailed neurological phenotype of MEG-MegaCC syndrome with its overlapping syndromes would allow for a better classification of the disease spectrum.
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Affiliation(s)
| | | | - Gökcen Oz Tuncer
- Department of Pediatric Neurology, Faculty of Medicine, Ondokuz Mayıs University, Samsun, Turkey
| | - Irem Sari Karabag
- Department of Radiology, Samsun Training and Research Hospital, Samsun, Turkey
| | - Seren Aydin
- Department of Pediatric Neurology, Faculty of Medicine, Ondokuz Mayıs University, Samsun, Turkey
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Sauvestre F, Marguet F, Rooryck C, Vuillaume ML, Cardinaud F, Laquerrière A, André G, Pelluard F. Early fetal presentation of Koolen-de Vries: Case report with literature review. Eur J Med Genet 2017; 60:605-609. [PMID: 28811189 DOI: 10.1016/j.ejmg.2017.08.012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2017] [Revised: 05/10/2017] [Accepted: 08/10/2017] [Indexed: 10/19/2022]
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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Affiliation(s)
- Fanny Sauvestre
- Department of Pathology, Bordeaux University Hospital, Pellegrin Hospital, Bordeaux, France.
| | - Florent Marguet
- Normandie Univ, UNIROUEN, INSERM U1245, Rouen University Hospital, Department of Pathology, Rouen, France
| | - Caroline Rooryck
- Department of Medical Genetics, Centre de Référence des Anomalies Du Développement Embryonnaire, Bordeaux University Hospital, Pellegrin Hospital, Bordeaux, France
| | - Marie-Laure Vuillaume
- Department of Medical Genetics, Centre de Référence des Anomalies Du Développement Embryonnaire, Bordeaux University Hospital, Pellegrin Hospital, Bordeaux, France
| | | | - Annie Laquerrière
- Normandie Univ, UNIROUEN, INSERM U1245, Rouen University Hospital, Department of Pathology, Rouen, France
| | - Gwenaëlle André
- Department of Pathology, Bordeaux University Hospital, Pellegrin Hospital, Bordeaux, France
| | - Fanny Pelluard
- Department of Pathology, Bordeaux University Hospital, Pellegrin Hospital, Bordeaux, France
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