Prominent and elongated coccyx, a new manifestation of KBG syndrome associated with novel mutation in ANKRD11.

Details

Serval ID
serval:BIB_39C7B90FA32A
Type
Article: article from journal or magazin.
Publication sub-type
Case report (case report): feedback on an observation with a short commentary.
Collection
Publications
Institution
Title
Prominent and elongated coccyx, a new manifestation of KBG syndrome associated with novel mutation in ANKRD11.
Journal
American journal of medical genetics. Part A
Author(s)
De Bernardi M.L., Ivanovski I., Caraffi S.G., Maini I., Street M.E., Bayat A., Zollino M., Lepri F.R., Gnazzo M., Errichiello E., Superti-Furga A., Garavelli L.
ISSN
1552-4833 (Electronic)
ISSN-L
1552-4825
Publication state
Published
Issued date
09/2018
Peer-reviewed
Oui
Volume
176
Number
9
Pages
1991-1995
Language
english
Notes
Publication types: Case Reports ; Journal Article ; Research Support, Non-U.S. Gov't
Publication Status: ppublish
Abstract
KBG syndrome is characterized by short stature, distinctive facial features, and developmental/cognitive delay and is caused by mutations in ANKRD11, one of the ankyrin repeat-containing cofactors. After the advent of whole exome sequencing, the number of clinical reports with KBG diagnosis has increased, leading to a revision of the phenotypic spectrum associated with this syndrome. Here, we report a female child showing clinical features of the KBG syndrome in addition to a caudal appendage at the coccyx with prominent skin fold and a peculiar calcaneus malformation. Exons and exon-intron junctions targeted resequencing of SH3PXD2B and MASP1 genes, known to be associated with prominent coccyx, gave negative outcome, whereas sequencing of ANKRD11 whose mutations matched the KBG phenotype of the proband showed a de novo heterozygous frameshift variant c.4528_4529delCC in exon 9 of ANKRD11. This report contributes to expand the knowledge of the clinical features of KBG syndrome and highlights the need to search for vertebral anomalies and suspect this condition in the presence of a prominent, elongated coccyx.
Keywords
Abnormalities, Multiple/diagnosis, Abnormalities, Multiple/genetics, Alleles, Bone Diseases, Developmental/diagnosis, Bone Diseases, Developmental/genetics, Child, Coccyx/abnormalities, DNA Mutational Analysis, Facies, Female, Genetic Association Studies, Genetic Testing, Genotype, Humans, Intellectual Disability/diagnosis, Intellectual Disability/genetics, Karyotype, Mutation, Phenotype, Radiography, Repressor Proteins/genetics, Symptom Assessment, Tooth Abnormalities/diagnosis, Tooth Abnormalities/genetics, ANKRD11, KBG syndrome, brachydactyly, facial dysmorphism, growth retardation, language delay, prominent and elongated coccyx
Pubmed
Web of science
Create date
13/08/2018 12:59
Last modification date
18/09/2019 5:10
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