Yuan H, Meng Z, Liu L, Deng X, Hu X, Liang L. A de novo 1.6Mb microdeletion at 19q13.2 in a boy with Diamond-Blackfan anemia, global developmental delay and multiple congenital anomalies.
Mol Cytogenet 2016;
9:58. [PMID:
27486481 PMCID:
PMC4970238 DOI:
10.1186/s13039-016-0268-2]
[Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2016] [Accepted: 07/25/2016] [Indexed: 11/10/2022] Open
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.
Electronic supplementary material
The online version of this article (doi:10.1186/s13039-016-0268-2) contains supplementary material, which is available to authorized users.
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