11/27/2025
Case report: prenatal diagnosis of UPD 14 after mosaic embryo transfer
We don't hear about adverse outcomes from mosaic embryo transfer very often, but it is important that they are published when they occur. This helps us learn more and provide accurate genetic counseling to people who are considering a mosaic embryo for transfer. There is always a chance for a pregnancy that results from a mosaic embryo to have a genetic syndrome associated with the mosaic PGT-A result, regardless of the chromosome. This is the first reported case of UPD14, but UPD15 has been reported previously.
DNAide was not involved in this case, but we routinely provide counseling about UPD to our patients when there is a chromosome that can be impacted by UPD.
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Minick J, Lende M (November 21, 2025) Prenatal Diagnosis of Paternal Uniparental Isodisomy 14 Arising From the Transfer of a Mosaic Monosomy 14 Embryo. Cureus 17(11): e97452. DOI 10.7759/cureus.97452
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