My baby brother was born with Trisomy 9 mosaicism back in 1981, he
died at the age of two. When I became pregnant with my daughter I
was terrified that she might too have it, so I went to a genetic
doctor who said that no, my probability of having a child with
trisomy 9 was almost impossible as it is not hereditary. I did
notice that at least one of you have two children with trisomy 9.
How can that be if it's not a hereditary issue.

I have a 3 year old son who has been diagnosed with autism. Now I'm
really curious to know if he may, in fact, have a trisomy of some
sort.

Forgive me for being so ignorant...I was very young and the disease
was practically unheard of at the time I dealt with it.

Teresa