There is a significant difference in the mean expected femur length by biparietal diameter among fetuses in the second trimester with regard to ethnicity. Using ethnic-specific formulas for expected femur length can have a considerable impact on the use of sonographic risk factors for Down syndrome screening. Further data are required for use of femur length as a screening tool in the genetic sonogram.

Pregnancies complicated by fetal single umbilical artery, especially when associated with other congenital abnormalities, are at increased risk for adverse pregnancy outcome.

No abstract

No abstract

No abstract