Phenotypes of craniofrontonasal syndrome in patients with a pathogenic mutation in EFNB1

Craniofrontonasal syndrome (CFNS) is an X-linked developmental malformation, caused by mutations in the EFNB1 gene, which have only been described since 2004. A genotype-phenotype correlation seems not to be present. As it is of major importance to adequately counsel patients with EFNB1 mutations an...

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Main Authors: Van Den Elzen, M, Twigg, S, Goos, J, Hoogeboom, A, Van Den Ouweland, A, Wilkie, A, Mathijssen, I
Format: Journal article
Language:English
Published: Nature Publishing Group 2014
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author Van Den Elzen, M
Twigg, S
Goos, J
Hoogeboom, A
Van Den Ouweland, A
Wilkie, A
Mathijssen, I
author_facet Van Den Elzen, M
Twigg, S
Goos, J
Hoogeboom, A
Van Den Ouweland, A
Wilkie, A
Mathijssen, I
author_sort Van Den Elzen, M
collection OXFORD
description Craniofrontonasal syndrome (CFNS) is an X-linked developmental malformation, caused by mutations in the EFNB1 gene, which have only been described since 2004. A genotype-phenotype correlation seems not to be present. As it is of major importance to adequately counsel patients with EFNB1 mutations and their parents, and to improve diagnosis of new patients, more information about the phenotypic features is needed. This study included 23 patients (2 male, 21 female) with confirmed EFNB1 mutations. All patients underwent a thorough physical examination and photographs were taken. If available, radiological images were also consulted. Hypertelorism, longitudinal ridging and/or splitting of nails, a (mild) webbed neck and a clinodactyly of one or more toes were the only consistent features observed in all patients. Frequently observed phenotypic features were bifid tip of the nose (91%), columellar indentation (91%) and low implantation of breasts (90%). In comparison with anthropometric data of facial proportions, patients with CFNS had a significantly different face in multiple respects. An overview of all phenotypic features is shown. Patients with EFNB1 mutations have a clear phenotype. This study will facilitate genetic counseling of parents and patients, and contribute to the diagnostic and screening process of patients with suspected CFNS. © 2014 Macmillan Publishers Limited All rights reserved.
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spelling oxford-uuid:da237c5c-3d94-4717-a0ea-222587a14bca2022-03-27T09:01:00ZPhenotypes of craniofrontonasal syndrome in patients with a pathogenic mutation in EFNB1Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:da237c5c-3d94-4717-a0ea-222587a14bcaEnglishSymplectic Elements at OxfordNature Publishing Group2014Van Den Elzen, MTwigg, SGoos, JHoogeboom, AVan Den Ouweland, AWilkie, AMathijssen, ICraniofrontonasal syndrome (CFNS) is an X-linked developmental malformation, caused by mutations in the EFNB1 gene, which have only been described since 2004. A genotype-phenotype correlation seems not to be present. As it is of major importance to adequately counsel patients with EFNB1 mutations and their parents, and to improve diagnosis of new patients, more information about the phenotypic features is needed. This study included 23 patients (2 male, 21 female) with confirmed EFNB1 mutations. All patients underwent a thorough physical examination and photographs were taken. If available, radiological images were also consulted. Hypertelorism, longitudinal ridging and/or splitting of nails, a (mild) webbed neck and a clinodactyly of one or more toes were the only consistent features observed in all patients. Frequently observed phenotypic features were bifid tip of the nose (91%), columellar indentation (91%) and low implantation of breasts (90%). In comparison with anthropometric data of facial proportions, patients with CFNS had a significantly different face in multiple respects. An overview of all phenotypic features is shown. Patients with EFNB1 mutations have a clear phenotype. This study will facilitate genetic counseling of parents and patients, and contribute to the diagnostic and screening process of patients with suspected CFNS. © 2014 Macmillan Publishers Limited All rights reserved.
spellingShingle Van Den Elzen, M
Twigg, S
Goos, J
Hoogeboom, A
Van Den Ouweland, A
Wilkie, A
Mathijssen, I
Phenotypes of craniofrontonasal syndrome in patients with a pathogenic mutation in EFNB1
title Phenotypes of craniofrontonasal syndrome in patients with a pathogenic mutation in EFNB1
title_full Phenotypes of craniofrontonasal syndrome in patients with a pathogenic mutation in EFNB1
title_fullStr Phenotypes of craniofrontonasal syndrome in patients with a pathogenic mutation in EFNB1
title_full_unstemmed Phenotypes of craniofrontonasal syndrome in patients with a pathogenic mutation in EFNB1
title_short Phenotypes of craniofrontonasal syndrome in patients with a pathogenic mutation in EFNB1
title_sort phenotypes of craniofrontonasal syndrome in patients with a pathogenic mutation in efnb1
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