Assessment of Combined Karyotype Analysis and Chromosome Microarray Analysis in Prenatal Diagnosis: A Cohort Study of 3710 Pregnancies

Table 3

Characteristics of prenatal samples with a normal karyotype and an abnormal CMA.

Cases	Characteristics	Karyotype results	CMA results
13	Single umbilical artery, strong echo of left heart, fetal intrauterine growth restriction	46, XX	Mosaicism for trisomy 2
2	Noninvasive DNA suggested high risk of trisomy 15	46, XY	Mosaicism for trisomy 15
3	Short long bones, separation of left kidney and renal pelvis, dilation of ureter, gallbladder not shown, trisomy 2	46, XX	Mosaicism for trisomy 2
4	≥35 years old, NT > 95th	46, XX	Mosaicism for trisomy 14