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Li X, Zhang LZ, Yu L, Long ZL, Lin AY, Gou CY. Prenatal diagnosis of Meier-Gorlin syndrome 7: a case presentation. BMC Pregnancy Childbirth 2021; 21:381. [PMID: 34000999 PMCID: PMC8130261 DOI: 10.1186/s12884-021-03868-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Accepted: 05/10/2021] [Indexed: 11/15/2022] Open
Abstract
Background Meier-Gorlin syndrome 7 (MGS7) is a rare autosomal recessive condition. We reported a fetus diagnosed with Meier-Gorlin syndrome 7. The antenatal sonographic images were presented, and compound heterozygous mutations of CDC45 on chromosome 22 were identified by whole-exome sequencing (WES). Case presentation Fetal growth restriction (FGR), craniosynostosis, and brachydactyly of right thumb were found in a fetus of 28th gestational weeks. The fetus was diagnosed as MGS7 clinically. After extensive counseling, the couple opted for prenatal diagnosis by cordocentesis and termination of pregnancy. Karyotype analysis and WES were performed. Chromosomal karyotyping showed that the fetus was 46, XY. There were 2 mutations of CDC45, the causal gene of MGS7 on chromosome 22, which were inherited from the couple respectively were identified by WES. Facial dysmorphism, brachydactyly of right thumb, and genitalia abnormally were proved by postpartum autopsy, and craniosynostosis was confirmed by three-dimensional computed tomography (3D-CT) reconstruction. Conclusions It is possible to detect multiple clinical features of Meier-Gorlin syndrome in prenatal sonography. Deteriorative FGR complicated with craniosynostosis indicates MGS7. Combination of 2D and 3D ultrasonography helps to detect craniosynostosis. The affected fetus was confirmed a compound heterozygote of CDC45 related MGS by whole-exome sequencing, which is critical in identifying rare genetic diseases.
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Affiliation(s)
- Xia Li
- Department of Obstetrics, the Second Affiliated Hospital of Guangzhou Medical University, No. 250 Changgang East Road, Haizhu District, Guangzhou, 510260, Guangdong Province, China
| | - Lan-Zhen Zhang
- Department of Obstetrics, the Second Affiliated Hospital of Guangzhou Medical University, No. 250 Changgang East Road, Haizhu District, Guangzhou, 510260, Guangdong Province, China.
| | - Lin Yu
- Department of Radiology, the Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong Province, China
| | - Zhao-Lua Long
- Department of Obstetrics, the Second Affiliated Hospital of Guangzhou Medical University, No. 250 Changgang East Road, Haizhu District, Guangzhou, 510260, Guangdong Province, China
| | - An-Yun Lin
- Department of Obstetrics, the Second Affiliated Hospital of Guangzhou Medical University, No. 250 Changgang East Road, Haizhu District, Guangzhou, 510260, Guangdong Province, China
| | - Chen-Yu Gou
- Department of Obstetrics, the Second Affiliated Hospital of Guangzhou Medical University, No. 250 Changgang East Road, Haizhu District, Guangzhou, 510260, Guangdong Province, China. .,Fetal Medicine Center, Department of Obstetrics and Gynecology, Sixth Affiliated Hospital of Sun Yat-Sen University, No. 26 Yuancun Erheng Road, Guangzhou, 510655, China.
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