The question appears to contain a typo. It's highly likely the question refers to Noonan syndrome, a genetic disorder present from birth.
Here's a breakdown of Noonan syndrome, based on the provided reference:
Noonan syndrome is a condition present at birth that causes changes in various parts of the body.
Key characteristics of Noonan Syndrome:
- Facial features: Distinct facial features are often present.
- Chest: Changes or abnormalities in the chest area.
- Heart problems: Heart defects are commonly associated with Noonan syndrome.
- Increased risk of leukemia: There's a slightly elevated risk of developing blood cancer (leukemia).
- Prevalence: It is a relatively common condition, affecting approximately 1 in 1,000 to 1 in 2,500 babies.
In summary, Noonan syndrome is a congenital disorder characterized by distinctive facial features, potential heart defects, chest abnormalities, and a slightly increased risk of leukemia. It's a fairly common condition among newborns.