A chromosomal disorder consisting of the presence of an extra chromosome 21.
Comprehensive, easy-to-understand information about this condition
Checking for content...
No external resources available.
Klinefelter syndrome
MONDO:0006823
mosaic trisomy 3
MONDO:0015060
mosaic trisomy 1
MONDO:0015706
mosaic trisomy 12
MONDO:0015718
mosaic trisomy 14
MONDO:0015725
mosaic trisomy 15
MONDO:0015727