in 11 cases ( 18.6 % ) the following chromosomal abnormalities were found : in 5 cases of down 's syndrome , 3 cases of full trisomy g , 1 case of 46xx/47xyg+ mosaicism , and in 1 case translocation 46xyd -- g -- t ( dqgq ) + .
C0008625
chromosomal abnormalities
C0013080
down 's