Table 4.
Results of chromosome karyotype analysis
| Ultrasound category | Chromosome karyotype analysis results | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 47, XN, + 21 | 47, XN, + 18 | 45, XO | 47, XXX | 47, XXY | 47, XYY | mosaicism | translocations | aneuploidy combined translocation | small supernumerary marker chromosomes | |
| Increased NT | 11 | 2 | 4 | 1 | 0 | 1 | 0 | 3 | 1 | 0 |
| Absent nasal bone | 6 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 1 | 0 |
| Short femur | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Choroid plexus cyst | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Echogenic intracardiac focus | 1 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 0 |
| Aberrant right subclavian artery | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 |
| Tricuspid regurgitation | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
| Multiple soft markers | 19 | 5 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 |
| Total | 38 | 8 | 4 | 1 | 1 | 1 | 2 | 5 | 2 | 1 |