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  • Title: A phenotypically normal liveborn male after prenatal diagnosis of trisomy 20 mosaicism.
    Author: Von Beust G, Bartels I, Zoll B.
    Journal: Genet Couns; 2003; 14(1):67-74. PubMed ID: 12725591.
    Abstract:
    We report on a case of prenatally diagnosed true trisomy 20 mosaicism in amniocytes. Cytogenetic analysis was performed postnatally on lymphocytes and extra-embryonic tissues. For analysing uroepithelial cells we established a new cell nuclei preparation protocol for FISH (Fluorescence In Situ Hybridization). Trisomy 20 cells could not be confirmed after birth. The origin or trisomy 20 cells in amniotic fluid remains unclear. The phenotypically normal male baby is developing normal.
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