A rare case of trisomy 13 mosaicism with only findings on first-trimester ultrasound single umbilical artery and increased nuchal translucency
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Background: Trisomy 13 is a chromosomal defect with high prenatal and postnatal mortality that may reach 87 % during the first year of life. More than 90 % of cases of fetuses with trisomy 13 may be detected by first-trimester ul... ...
