Recurrent Nonimmune Fetal Hydrops Due to a Novel Pathogenic Variant in PIEZO1 Gene: A Case Report from South India

Abstract

Nonimmune fetal hydrops (NIFH) has underlying diverse etiology with generalized lymphatic dysplasia being one such cause. Lymphatic malformation-6 is a type of lymphatic dysplasia that is due to homozygous or compound heterozygous variants in the PIEZO1 gene. The clinical features associated with this condition during fetal life are nonimmune fetal hydrops that manifests with widespread lymphatic edema, with other systemic manifestations like pericardial/pleural effusions, chylothorax along with lymphangiectasia seen primarily in lungs and intestines. We present a case of recurrent NIFH in a family due to a novel pathogenic mutation in PIEZO1 gene. This variant was identified in homozygous state in all the three affected fetuses and in heterozygous state in both the parents. The couple were counseled regarding recurrence of this condition and given reproductive options for future pregnancies.

Keywords

lymphatic malformation-6 - generalized lymphatic dysplasia - lymphangiectasia - nonimmune hydrops fetalis - PIEZO1 gene

Publikationsverlauf

Artikel online veröffentlicht:
12. Mai 2023

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