Could two pieces of a stone mosaic ever be identical? Of course, the answer is no--and each stone’s variation subtly contributes value to the finished work. Why should your cells be any different?

The third section on medical consequences discusses the impact of female X chromosome mosaicism. Migeon explains how mosaicism provides two cell populations whose proportions can vary by chance or ...

While Emma has Down syndrome — specifically a rare type called Mosaic Down syndrome — some people don’t believe it. “At the ...

Medically reviewed by Brigid Dwyer, MD Mosaic Down syndrome is a variant of Down syndrome. Down syndrome is a congenital (present at birth) genetic condition that occurs when a person has three copies ...

Mosaic variegated aneuploidy syndrome (MVAS) is an autosomal recessive disorder characterized by mosaic aneuploidy. Its clinical manifestations include growth and developmental delay, congenital ...