Mosaic trisomy 8 is a rare genetic condition caused by an extra chromosome. Sometimes called trisomy 8 mosaicism, this condition develops well before birth. It's a result of an abnormality in how ...
Emma McLean is a 6-year-old girl who loves Taylor Swift, reading books, playing the drums and hanging with her little sister. While Emma has Down syndrome — specifically a rare type called Mosaic Down ...
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