A member asked:

Do you think an adult could have mosaic down syndrome?

A doctor has provided 1 answer

Accounts for 1% DS: Mosaicism is encountered in ds patients & I have followed one in the past. By definition, some tissues are composed of cells with normal information & other tissues have the abnormal, but the mix could vary greatly in the percentage of either. Functional outcome depends on that blend & whether the abnormally derived tissues compose critical structures like brain, blood, reproductive organs, etc.

Answered 5/19/2012

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Related Questions

A member asked:

How to know if the baby is Down syndrome or mosaic down without blood test?

4 doctors weighed in across 2 answers