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- Title
Correlation Between Vanishing White Matter Disease and Novel Heterozygous EIF2B3 Variants Using Next-Generation Sequencing: A Case Report.
- Authors
Sung Eun Hyun; Byung Se Choi; Ja-Hyun Jang; Inpyo Jeon; Dae-Hyun Jang; Ju Seok Ryu
- Abstract
Vanishing white matter (VWM) disease is an autosomal recessive disorder that affects the central nervous system of a patient, and is caused by the development of pathogenic mutations in any of the EIF2B1-5 genes. Any dysfunction of the EIF2B1-5 gene encoded eIF2B causes stress-provoked episodic rapid neurological deterioration in the patient, followed by a chronic progressive disease course. We present the case of a patient with an infantile-onset VWM with the pre-described specific clinical course, subsequent neurological aggravation induced by each viral infection, and the noted consequent progression into a comatose state. Although the initial brain magnetic resonance imaging did not reveal specific pathognomonic signs of VWM to distinguish it from other types of demyelinating leukodystrophy, the next-generation sequencing studies identified heterozygous missense variants in EIF2B3, including a novel variant in exon 7 (C706G), as well as a 0.008% frequency reported variant in exon 2 (T89C). Hence, the characteristic of unbiased genomic sequencing can clinically affect patient care and decision-making, especially in terms of the consideration of genetic disorders such as leukoencephalopathy in pediatric patients.
- Subjects
LEUKODYSTROPHY; LEUKOENCEPHALOPATHIES; CENTRAL nervous system; GENETIC disorders; MAGNETIC resonance imaging; VIRUS diseases
- Publication
Annals of Rehabilitation Medicine, 2019, Vol 43, Issue 2, p234
- ISSN
2234-0645
- Publication type
Article
- DOI
10.5535/arm.2019.43.2.234