Puvabanditsin Surasak, Negroponte Emily, Jang Peter, Hedges Amanda, Kased Ramnan, Mehta Rajeev
Department of Pediatrics, Rutgers Robert Wood Johnson (RWJ) Medical School, New Brunswick, NJ, USA.
Mol Syndromol. 2020 Jan;10(5):276-280. doi: 10.1159/000503698. Epub 2019 Oct 22.
We report a preterm male neonate presenting with a lumbosacral meningomyelocele, type II Arnold Chiari malformation, hypoplasia of the aortic arch, bicuspid aortic valve, ventricular septal defect, secundum atrial septal defect, multicystic dysplastic kidney, and hydronephrosis. Analysis with whole genome SNP microarray revealed an interstitial deletion of about 237 kb in chromosome 6q26. Long contiguous stretches of homozygosity (>3 Mb) were seen in 18 chromosomes with a total genomic size of 219 Mb. The phenotype seen in our patient has not been reported in association with the genes in the homozygous regions. However, our patient shares many phenotypic features with other reported cases that have shown a deletion in the same region of chromosome 6.
我们报告了一名早产男婴,患有腰骶部脊髓脊膜膨出、II型阿诺德-基亚里畸形、主动脉弓发育不全、二叶式主动脉瓣、室间隔缺损、继发孔房间隔缺损、多囊性发育不良肾和肾积水。全基因组SNP微阵列分析显示6号染色体q26区域存在约237 kb的间质缺失。在18条染色体上发现了长的连续纯合片段(>3 Mb),总基因组大小为219 Mb。在我们的患者中观察到的表型尚未见与纯合区域中的基因相关的报道。然而,我们的患者与其他已报道的在6号染色体同一区域出现缺失的病例有许多共同的表型特征。