[Structural chromosomal aberrations in parents with spontaneous abortions].

In the Laboratory for Human Cytogenetics of the University Hospital Department of Gynecology and Obstetrics in Beograd a cytogenetic analysis of 30 families with spontaneous abortion was performed. In two families structural chromosome aberrations--Y chromosome deletion and 13/14 translocation--were detected. Phenotypic normal male members of one family revealed the same type of deletion of the larger part of the distal region of the long Y chromosome arm (46, X, del (Y) (q12)). In the other family, in a phenotypically normal parent, a balanced translocation (45, XY, t (13/14)) was observed. The authors discuss the correlation between structural aberrations. Yq delation and 13/14 translocation on the one hand and spontaneous abortion on the other.