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Chromosomal mosaicism on amniotic interphase nuclei detected by multiprobe FISH
Maria Constantinou1, Ewa Zajac, Bogdan Kałuzewski
1Department of Medical Genetics, Medical University of Łódź, Łódź, Poland. majcon@kardio-sterling.lodz.pl
Journal of Applied Genetics
|November 18, 2003
Summary
The MultiVision PGT test detected prenatal chromosomal mosaicism, but this result was not confirmed postnatally. This discrepancy highlights challenges in prenatal genetic testing accuracy.
Area of Science:
- Genetics
- Prenatal Diagnostics
- Cytogenetics
Background:
- Classical prenatal detection of chromosome aberrations is time-consuming.
- Advanced molecular techniques offer faster alternatives for genetic screening.
Purpose of the Study:
- To evaluate the MultiVision PGT test for simultaneous detection of aneuploidies.
- To report a case of prenatal chromosomal mosaicism detected by this test.
Main Methods:
- Utilized the MultiVision PGT test for prenatal detection of aneuploidies.
- Performed postnatal testing on blood smear using the same method.
Main Results:
- Prenatal testing revealed chromosomal mosaicism (69,XYY[35]/46,XY[65]).
- Postnatal testing did not confirm the mosaicism found prenatally.
Conclusions:
- The MultiVision PGT test identified a prenatal chromosomal abnormality.
- A discrepancy between prenatal and postnatal test results was observed, requiring further investigation.