The new mediacal dictionary. 2014.
NT scanning — nuchal translucency scanning … The new mediacal dictionary
Nuchal scan — A nuchal scan is a sonographic prenatal screening scan (ultrasound) to help identify higher risks of chromosomal defects including Down s syndrome in a fetus, particularly for older women who have higher risks of such pregnancies. High thickness… … Wikipedia
cystic hygroma — a collection of fluid behind the neck of a fetus, occasionally extending laterally to involve the sides of the neck (see hydrops fetalis). In its mildest form it is evidenced by an increased nuchal translucency (see nuchal translucency scanning) … The new mediacal dictionary
ultrasound marker — the appearance, on ultrasonography of a pregnant woman, of a feature suggesting an abnormality in the fetus. Such markers can be classified as major fetal structural abnormalities or minor ultrasound features called soft markers. The latter are… … The new mediacal dictionary
prenatal screening — screening tests carried out to estimate the risk of chromosomal or other abnormalities being present in a developing fetus. They include blood tests to measure levels of human chorionic gonadotrophin (hCG), PAPP A, alpha fetoprotein (AFP), and… … The new mediacal dictionary
Down's syndrome — Down syndrome a condition resulting from a chromosomal abnormality most commonly due to the presence of three copies of chromosome 21 (trisomy 21), which is most likely to occur with advanced maternal age. Down s syndrome can also occur as a… … The new mediacal dictionary
Edwards' syndrome — a condition resulting from a genetic abnormality in which an extra chromosome is present – there are three no. 18 chromosomes instead of the usual two. Affected babies, who rarely survive, have a characteristic abnormally shaped head, low birth… … The new mediacal dictionary
Obstetric ultrasonography — Intervention Obstetric sonogram of a fetus at 16 weeks. The bright white circle center right is the head, which faces to the left. Features include the forehead at 10 o clock, the left ear toward the center at 7 o clock and the right hand… … Wikipedia
