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[Clinical and genetic analysis of a patient with Mowat-Wilson syndrome]

Pingli Zhang¹, Yanqi Hou, Peiyuan Liao

¹Department of Pediatrics, Qilu Hospital, Shandong University, Jinan, Shandong 266035, China. dryangyang@163.com.

Zhonghua Yi Xue Yi Chuan Xue Za Zhi = Zhonghua Yixue Yichuanxue Zazhi = Chinese Journal of Medical Genetics

|May 11, 2021

Abstract

Objective:

To summarize the clinical phenotype and genotype of a Chinese child affected with Mowat-Wilson syndrome (MWS).

Methods:

Clinical data of the patient were collected. The patient was analyzed by whole-exome sequencing (WES) as well as Sanger sequencing.

Results:

The patient was a male infant with recurrent fever and slow growth. He also had characteristic facies, recurrent spasm, and growth retardation. WES revealed that he has carried a heterozygous nonsense c.2609C>G (p.Ser870X) variant of the ZEB2 gene (30% mosaicism). Based on the American College of Medical Genetics and Genomics standards and guidelines, the variant was predicted to be pathogenic (PVS1+PS1+PS2+PM2).

Conclusion:

The c.2609C>G variant of the ZEB2 gene probably underlay the MWS in this child. The mosaicism of the variant may explain his mild symptoms.

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