At the end of the second trimester, the nuchal translucency can no longer be seen and instead the nuchal fold is measured. The fold is more focal and at the level of the posterior fossa. This measurement has a higher threshold of normal, although the implications of increased thickness are similar to those of translucency.
Read more about this topic: Nuchal Scan
Famous quotes containing the word fold:
“we do not explain my husbands insane abuse
and we do not say why your wild-haired wife has fled
or that my father opened like a walnut and then was dead.
Your palms fold over me like knees. Love is the only use.”
—Anne Sexton (19281974)