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Research ArticleOpen Access

Identification of Microdeletion of 7q36.1-qter in Fetal Hemivertebrae with Scoliosis

Volume 9 - Issue 5

Yingjun Xie1, Wei Jian2, Jingsi Chen2, Dunjin Chen2 and Xiaofang Sun*1

  • Author Information Open or Close
    • 1 Key Laboratory for Major Obstetric Diseases of Guangdong Province, The Third Affiliated Hospital of Guangzhou Medical University, China
    • 2 Prenatal Diagnosis Department, The Third Affiliated Hospital of Guangzhou Medical University, China
    • *Corresponding author: Xiaofang Sun, Key Laboratory for Major Obstetric Diseases of Guangdong Province, Key Laboratory of Reproduction and Genetics of Guangdong Higher Education Institutes, The Third Affiliated Hospital of Guangzhou Medical University, Duobao Road 63#, 510150, Guangzhou, China

Received:October 01, 2018;   Published: October 11, 2018

DOI: 10.26717/BJSTR.2018.09.001876

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Abstract

The 7q36 microdeletion has been identified in patients with variant phenotypes including sacral agenesis, holoprosencephaly and intellectual disability. Here we describe a case of fetus with hemivertebrae and scoliosis and detected a 6.42 Mb pure microdeletion at 7q36.1-qter by chromosomal microarray analysis (CMA) that was not determined by traditional karyotyping. This microdeletion was confirmed by Fluorescent in situ hybridization (FISH) assay. Accurate breakpoints of the deletion in this case were used to establish correlations between microdeletion at 7q36.1-q36.3 and the accompanied phenotypes, hemivertebrae deformity, which is rarely found in monosomy 7q36.1-qter. Our study identified and described an important relationship between fetal hemivertebrae with scoliosis and 7q36.1-qter microdeletion overlap with MNXI and SHH.

Keywords : Monosomy, 7q36.1-qter, Microarray Analysis, Genotype-Phenotype Correlation, Prenatal Diagnosis, Hemivertebrae Deformity

Abbreviations : CMA: Chromosomal Microarray Analysis; FISH: Fluorescent In Situ Hybridization; CS: Congenital Scoliosis; HPE: Holoprosencephaly; SMMCI: Solitary Median Maxillary Central Incisor

Abstract | Introduction| Materials and Methods| Results| Discussion| Acknowledgement| Funding| References|