Trisomy 2, trisomy 20, and a deletion of 17p were found as the sole abnormalities, yielding the karyotypes 47,XY, + 2; 47,XX, + 20; and 46,XX,del(17)(p12)/46,XX.
[ncbi.nlm.nih.gov]
Fetal blood sampling showed a normal karyotype and no fetal, neonatal or infant abnormalities were observed.
[ncbi.nlm.nih.gov]
This is the first reported case of deletion of 17p as the sole chromosomal abnormality in a hepatoblastoma and the first reported case of trisomy 20 without double minute
[ncbi.nlm.nih.gov]