Small Supernumerary Marker Chromosomes and Uniparental Disomy Have a Story to Tell

Abstract excerpt

Small supernumerary maker chromosomes (sSMC) and uniparental disomy (UPD) are rare, and a combination of both is rarely encountered. Accordingly, only 46 sSMC cases UPD have been reported. Despite of its rareness, UPD has to be considered, especially in prenatal cases with sSMC. Here, the authors reviewed all sSMC cases with UPD (sSMC(U+)) and compared them to sSMC without UPD (sSMC(U-)), which resulted in the...

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