“…HDlive may be superior to normal 2D ultrasound in the characterization of a chorionic bump, which is an irregular convex bulge passing from the choriodecidual surface into the first-trimester gestational sac. A chorionic bump may clinically represent a warning sign when detected in the first trimester scan as women with such an ultrasound marker have almost double the risk of miscarriages compared with controls (15,21,22). A cystic hygroma is highly defined using this lightening technique as can be seen in Figure 6.…”