On Saturday, February 9, 2002, at 08:35 PM, G. Hertz wrote: I just heard today that the baby does have Down Syndrome, is doing well and the parents think he's great. Have any of you ever been in the situation that you just couldn't tell? Yes, when I was a resident I examined a newborn that was just "slightly" off. Other people didn't see anything odd about the baby. It turned out he was a mosaic Trisomy-21. Julia in Waunakee