A De Novo 1.6Mb Microdeletion at 19q13.2 in a Boy with Diamond-Blackfan Anemia, Global Developmental Delay and Multiple Congenital Anomalies

Overview

Journal Mol Cytogenet

Publisher Biomed Central

Specialty Biochemistry

Date 2016 Aug 4

PMID 27486481

Citations 3

Authors

Haiming Yuan

Zhe Meng

Liping Liu

Xiaoyan Deng

Xizi Hu

Liyang Liang

Affiliations

Soon will be listed here.

Abstract

Backgroud: Microdeletions at 19q13.2 are very rare. Only two cases have been previously described. Here we report a 2-year-2-month old boy with Diamond-Blackfan anemia, global developmental delay, cognitive impairments, distinctive facial features, behavior problems, skeletal and genital dysplasia.

Case Presentation: A de novo 1.6 Mb microdeletion at 19q13.2q13.31 was detected by chromosomal microarray analysis. Haploinsufficiency of the RPS19 gene is known to cause Diamond-Blackfan anemia, other features in this patient are likely due to the deletion of other candidate genes such as PAFAH1B3, ERF, LIPE and GSK3A.

Conclusion: The deletion detected in our patient overlapped and was significantly smaller than the ones previously reported, which offered the opportunity to further define the critical region for this proposed contiguous gene deletion syndrome.

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