On antenatal ultrasound assessment, an apparently solitary hydronephrotic kidney was identified, confirmed on postnatal ultrasound examination. More detailed postnatal investigations revealed the diagnosis of crossed renal ectopia.

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Article Synopsis
  • - Crossed fused renal ectopia is a rare kidney disorder more common in males, occurring in about 1 in 2000 to 1 in 7500 individuals found during autopsies.
  • - A 34-year-old woman was assessed during her first-trimester screening, which showed a low risk of genetic disorders; however, further imaging suggested crossed fused renal ectopia, a diagnosis confirmed through later scans.
  • - This case highlights that crossed fused renal ectopia can be diagnosed as early as the first trimester and the condition did not lead to complications for the mother or baby, who was born healthy via C-section at 36 weeks.
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