Table 2.
Pathogenic/likely pathogenic CNVs identified in the fetuses enrolled using chromosomal microarray analysis.
| Cases | CMA results | Size | Origin | Pathogenicity | Prenatal ultrasound examination results | Pregnancy outcome |
|---|---|---|---|---|---|---|
| Case 1 | arr[GRCh37] 13q31.1q34(86,495,307_115,107,733) × 1 | 28.6 Mb | / | P | Holoprosencephaly | TOP |
| Case 2 | arr[GRCh37] 7q32.1q36.3(128,688,836_159,119,707) × 3; arr[GRCh37] 10q26.2q26.3(128,005,413_135,426,386) × 1 |
30.4 Mb; 7.4 Mb |
/ | P; P | Hydrocephalus | TOP |
| Case 3 | arr[GRCh37] 1p36.33p36.31(849,467_5,866,441) × 1 | 5.0 Mb | / | P | Ventriculomegaly | TOP |
| Case 4 | arr[GRCh37] 13q31.3q34(92,396,250_115,107,733) × 4 | 22.7 Mb | / | P | Dysplasia of corpus callosum, dysplasia of vermis cerebelli, smaller left eyeball, abnormal finger posture | TOP |
| Case 5 | arr[GRCh37] 4p16.3p16.2(68,345_5,440,181) × 1, arr[GRCh37] 4p16.2p15.1(5,447,464_34,170,864) × 3 | 5.3 Mb; 28.7 Mb | / | P; P | Dysplasia of vermis cerebelli, right renal agenesis, and skeleton anomalies | TOP |
| Case 6 | arr[GRCh37] 7q11.23(72,723,370_74,154,209) × 1 | 1.4 Mb | De novo | P | Dysplasia of corpus callosum | TOP |
| Case 7 | arr[GRCh37] 1q21.1q21.2(145,895,747_147,830,830) × 1 | 1.9 Mb | Maternal | P | Dysplasia of corpus callosum | TOP |
| Case 8 | arr[GRCh37] 15q11.2(22,770,422_23,277,436) × 1 | 507.0 Kb | / | P | Spina bifida, omphalocele, abdominal wall defect | TOP |
| Case 9 | arr[GRCh37] 2p25.3p24.1(12,771_20,231,217) × 3 | 20.2 Mb | / | P | Spina bifida, abnormal curvature of the sacrum | TOP |
P pathogenic, TOP termination of pregnancy, CMA chromosomal microarray analysis.