Detección de un mosaico de trisomía 21 en líquido amniótico
Detección de un mosaico de trisomía 21 en líquido amniótico
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DETECTION OF A MOSAICISM OF TRISOMY 21 IN AMNIOTIC LIQUID
Abstract:A result with chromosomal alteration was analyzed from a database consisting of a total of 4755 samples of amniotic fluid extracted by amniocentesis with indication of the attending physician, serum risk and advanced maternal age.
This report presents the detection of a mosaicism of trisomy 21 in amniotic fluid, using G- Banding where 20 metaphases were analyzed.
The results obtained document a chromosomal composition 47, XY + 21 and 46, XY with a 9:11 ratio with respect to the metaphases analyzed, confirming the diagnosis of Down syndrome secondary to mosaicism.
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