Mosaic Down Syndrome is a genetic condition in which a person is born with an extra copy of chromosome 21 in some cells, affecting less than 1% of those with Down syndrome.

Mosaic Down syndrome is a rare, less severe form of Down syndrome. We explain the condition, its cause, symptoms, and how to diagnose it.

Zambelli was diagnosed with Mosaic Down Syndrome at the age of 23, while 28 weeks pregnant. This combined image shows Ashley Zambelli, 23, left, and Zambelli with her daughter Lillian, right.

A MUM who was diagnosed with Down’s syndrome aged 23 says people “don’t believe” she has the condition. Ashley Zambelli discovered she has mosaic Down’s syndrome in Fe… ...

SOX2 anophthalmia syndrome: This condition is rare, but when it does occur, it can cause a child to be born without eyes and experience seizures, brain development issues, and delayed growth.

Ashley had genetic testing which revealed she had mosaic Down’s syndrome – giving her a 50 per cent chance of having children with an extra chromosome. She said: “I was very happy to find ...

Ashley Zambelli, from Macomb Township, Michigan, US, is defying stereotypes and challenging misconceptions about Down syndrome. Diagnosed with mosaic Down syndrome at the age of 23, Ashley has ...

Katie Rausch | The Flint JournalLinette Soto of Grand Blanc Township was distraught when daughter Aniza, 2 1/2, was diagnosed with a rare condition called Mosaic Down Syndrome, but became ...

For Ashley Zambelli, a surprise diagnosis allowed her to have an even more special bond with her children. The Michigan-based mom, 23, recently found out she has Mosaic Down syndrome, a condition in ...

Babies born with mosaic Down syndrome may have similar features and health issues as those born with trisomy 21 Down syndrome. Overall, though, they may have fewer of these characteristics.