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Duplications of chromosome 6p are rarely reported. We present the case of a girl with a de novo trisomy 6p12.3-p21.1 who showed clinical features characteristic of this syndrome, notably facial anomalies, psychomotor delay, and recurrent respiratory tract infections. The most striking feature, however, was craniosynostosis, manifested by the premature fusion of the right coronal and sagittal sutures. A review of the literature revealed that the presence of abnormal fontanelles and sutures is relatively common among patients with proximal trisomy 6p. Exclusion of the most frequently occurring craniosynostosis mutations, as well as of further chromosomal anomalies in our case, suggest the presence of a gene regulating suture formation within this region. Based on recent findings, we hypothesize that the runt-related transcription factor 2 (RUNX2) may be a reasonable candidate gene for craniosynostosis in such patients.

Original publication

DOI

10.1002/ajmg.a.35727

Type

Journal article

Journal

Am J Med Genet A

Publication Date

02/2013

Volume

161A

Pages

343 - 351

Keywords

Abnormalities, Multiple, Child, Chromosomes, Human, Pair 6, Core Binding Factor Alpha 1 Subunit, Craniosynostoses, Developmental Disabilities, Female, Gene Duplication, Genetic Association Studies, Humans, Infant, Infant, Newborn, Radiography, Syndrome, Trisomy