In this session, Part 1, we will review soft markers of aneuploidy and their management. Soft markers of aneuploidy can be isolated or multiple. They can be associated with chromosomal, genetic, infectious causes, or they can be normal variants. In this session we will cover: ventriculomegaly, choroid plexus cysts, absent/hypoplastic nasal bone, nuchal folds, and echogenic bowel. Data for this podcast comes from SMFM and AIUM.