Abstract
Background
Autosomal recessive polycystic kidney disease (ARPKD) is one of the most common hereditary nephropathies in childhood. We report a neonate with ARPKD presenting with oligohydramnios, enlargement and increased echogenicity of both kidneys shown by antenatal sonograms after a 29-week gestation and died within the first few hours of life.
Methods
The neonate was investigated pathologically post-mortem. PCR-DNA direct sequencing was performed to detect the exons of the PKHD1 gene for mutation analysis.
Results
Autopsy findings of the kidney and liver confirmed the diagnostic hypothesis. PKHD1 mutation analysis revealed that there was a homozygous nonsense mutation c.9319C>T (p.R3107X), which was found to be pathogenic, in exon 58 in the neonate.
Conclusions
The recurrence of PKHD1 mutation c.9319C>T (p.R3107X) in the ARPKD population might be a good evidence that it is disease associated. Given the limitations of antenatal ultrasound, PKHD1 mutation analysis is helpful for accurate genetic counseling and early prenatal diagnosis.
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Zhou, XH., Hui, ZY. & Li, Y. Clinical and pathological features of a neonate with autosomal recessive polycystic kidney disease caused by a nonsense PKHD1 mutation. World J Pediatr 9, 76–79 (2013). https://doi.org/10.1007/s12519-013-0407-3
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DOI: https://doi.org/10.1007/s12519-013-0407-3