Identification of novel PIEZO1 variants using prenatal exome sequencing and correlation to ultrasound and autopsy findings of recurrent hydrops fetalis

Abstract excerpt

Nonimmune hydrops fetalis (NIHF) is a rare disorder with a high perinatal mortality of at least 50%. One cause of NIHF is generalized lymphatic dysplasia (GLD), a rare form of primary lymphedema of the extremities and systemic involvement including chylothoraces and pericardial effusions. An autosomal recessive form of GLD has been described, caused by variants in the PIEZO1 gene. It has been reported clinically...

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