My Life with Mosaic Down Syndrome by Robyn D. Batezel gives readers a glimpse into a type of Down syndrome that is rare and not very well understood.
Facts about Mosaic Down Syndrome from the International Mosaic Down syndrome Association.
- Mosaic Down syndrome happens during cell division during and/or after conception.
- People with mDs have a percentage of cells with an extra copy of the 21st chromosome and the remaining cells are unaffected. This type of Down syndrome accounts for about 2%-4% of the cases of Down syndrome.
- Mosaic translocation Down syndrome occurs when a person has a percentage of translocation Down syndrome cells and the remaining cells are unaffected. Translocation happens when a piece of chromosome 21 becomes attached to another chromosome, during cell division. Translocation can be inherited by parents, but this is not always the case. This type of Down syndrome has not yet been studied, so we are unable to give an accurate number of occurrences.
- Approximately 1 in 27,000 people are diagnosed with mosaic Down syndrome.
- Approximately 15% of individuals diagnosed with Trisomy 21 Down syndrome are misdiagnosed and actually have mosaic Down syndrome.
- There are many individuals who are never diagnosed with this condition.
Rob wrote this book when he was in his late 20s.
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