XXY aneuploidy is the most common disorder of sex chromosomes in humans, with prevalence of one in 500 males. Other sex chromosomal aneuploidies have also been described, although they are much less ...
3002 patients had an XXY sex chromosome complement; the rest were mosaic or had ... 36·7 for those with a 48 XXYY constitution), and breast cancer (57·8; 223 for those with a 47 XXY mosaic ...