[Prenatal diagnosis and management of foetal lung lesions].

Introduction: Foetal lung lesions are uncommon (<1/1000 deliveries). Prenatal ultrasound can distinguish echogenic and cystic lesions.

Background: The most frequently diagnosed abnormalities are congenital cystic adenomatoid malformation (echogenic and/or cystic), pulmonary sequestration (echogenic), congenital lobar emphysema (echogenic) and bronchogenic cyst (cystic).

Is first-trimester crown-rump length associated with birthweight?

Objective: To evaluate the relationship between first-trimester crown-rump length (CRL) and birthweight (BW) Z scores.

Design: Retrospective cohort study.

Setting: Two tertiary centres in France.

Screening for adverse pregnancy outcome at early gestational age.

In the past two decades second-trimester maternal serum screening for Down syndrome has been the most common strategy for prenatal diagnosis of chromosomal aneuploidies. More recently, screening for and diagnosis of chromosomal abnormalities have increasingly been performed in the first trimester. With improvements and technological advances in ultrasound, it is now possible to identify many fetal anomalies at 11-13 weeks of gestation.