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  2. Down syndrome - Wikipedia

    en.wikipedia.org/wiki/Down_syndrome

    Down syndrome or Down's syndrome, [12] also known as trisomy 21, is a genetic disorder caused by the presence of all or part of a third copy of chromosome 21. [3] It is usually associated with developmental delays, mild to moderate intellectual disability , and characteristic physical features.

  3. Everything you need to know about Down syndrome - AOL

    www.aol.com/news/everything-know-down-syndrome...

    Translocation Down syndrome can be passed from parent to child, but this is rare. In these cases, the parent may have extra genetic material from chromosome 21 but no signs of Down syndrome ...

  4. A mom of 3 learned she had mosaic Down syndrome through ... - AOL

    www.aol.com/lifestyle/mom-3-learned-she-had...

    A mother shares her story about being diagnosed with mosaic Down syndrome. ... now 2, she chose to do genetic testing in utero; Lillian was diagnosed with trisomy 21 at 10 weeks gestation. One ...

  5. 13 Facts About Down Syndrome That Parents Should Know - AOL

    www.aol.com/news/13-facts-down-syndrome-parents...

    In honor of Down Syndrome Awareness Month, which happens every October, we rounded up some informative facts about the chromosomal condition.

  6. Transient myeloproliferative disease - Wikipedia

    en.wikipedia.org/wiki/Transient...

    Transient myeloproliferative disease develops and may be of concern in fetuses. Features in a review of 39 reported fetal cases include: reduced platelet production often accompanied by significantly reduced levels of circulating platelets; reduced red blood cell production sometimes accompanied by mild anemia; increased levels of circulating megakaryoblasts and white blood cells; grossly ...

  7. Prenatal testing - Wikipedia

    en.wikipedia.org/wiki/Prenatal_testing

    In fact, consider that Down syndrome affects about 1:400 pregnancies; if you screened 4000 pregnancies with a Quad test, there would probably be 10 Down syndrome pregnancies of which the Quad test, with its 80% sensitivity, would call 8 of them high-risk. The quad test would also tell 5% (~200) of the 3990 normal women that they are high-risk.

  8. Intestinal atresia - Wikipedia

    en.wikipedia.org/wiki/Intestinal_atresia

    The most common form of intestinal atresia is duodenal atresia. It has a strong association with Down syndrome. [12] The second-most common type is ileal atresia. 95% of congenital jejunoileal obstructions are atresias; only 5% are stenoses. [2] Prevalence of jejunoileal atresia is 1 to 3 in 10,000 live births.

  9. Down Syndrome Tests During Pregnancy: Everything ... - AOL

    www.aol.com/news/prenatal-testing-down-syndrome...

    Here’s what to know about the different types of Down syndrome tests and their effectiveness. Skip to main content. Sign in. Mail. 24/7 Help. For premium support please call: 800-290-4726 ...