Biallelic Variants in LAMB1 Causing Hydranencephaly: A Severe Phenotype of a Rare Malformative Encephalopathy.

IF 0.8 Q4 PEDIATRICS
AJP Reports Pub Date : 2021-01-01 Epub Date: 2021-02-01 DOI:10.1055/s-0040-1722728
Kuntal Sen, Shagun Kaur, David W Stockton, Mary Nyhuis, Jacquelyn Roberson
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引用次数: 4

Abstract

Case Report  A 32-year-old female with a history of three prior pregnancy losses presented for genetic testing following an ultrasonography diagnosis of fetal hydranencephaly. Baby was born via C-section and was noted to have a head circumference of 48 cm, in addition to ocular and cardiac anomalies and dysmorphic features. Whole genome sequencing revealed a homozygous variant in LAMB1 gene. Discussion  The pathobiogenesis of hydranencephaly is incompletely understood and is attributed to vascular, infectious, or genetic etiology. Herein we present LAMB1 as a monogenic cause of fetal hydranencephaly which was incompatible with life. Previously, LAMB1 -associated phenotype consisted of cobblestone lissencephaly and hydrocephalus, developmental delay, and seizures. Our proband expands the phenotypic spectrum of this malformative encephalopathy.

Abstract Image

LAMB1双等位变异导致无水脑畸形:一种罕见的畸形脑病的严重表型。
病例报告一名32岁女性,有三次流产史,超声诊断胎儿无脑畸形后进行基因检测。婴儿通过剖腹产出生,并注意到头围为48厘米,此外还有眼和心脏异常和畸形特征。全基因组测序显示LAMB1基因的纯合子变异。无脑畸形的发病机制尚不完全清楚,可归因于血管、感染或遗传病因。在这里,我们提出LAMB1作为胎儿无脑畸形的单基因原因,与生命不相容。以前,LAMB1相关表型包括卵石状无脑畸形和脑积水,发育迟缓和癫痫发作。我们的先证者扩展了这种畸形脑病的表型谱。
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来源期刊
AJP Reports
AJP Reports PEDIATRICS-
CiteScore
2.20
自引率
0.00%
发文量
30
审稿时长
12 weeks
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