<em><strong>Color Doppler, HDlive, and HDlive Silhouette features of an umbilical cord cyst before 11 weeks of gestation: Diagnostic value-Figures</strong></em>

Figure 1 A normal umbilical cord (UC) depicted by two-dimensional sonography (a), HDlive (b), and HDlive Silhouette (c) at 8 weeks and 2 days of gestation. MH, midgut herniation; YS, yolk sac. Figure 2 Multiple umbilical cord cysts (UCCs) located on the fetal side depicted by two-dimensional sonography (a), color Doppler (b), HDlive (c), and HDlive Silhouette (d) at 8 weeks and 6 days of gestation. AM, amniotic membrane; CC, central cyst; MH, midgut herniation; UC, umbilical cord; YS, yolk sac. Figure 3 Multiple umbilical cord cysts (UCCs) located at the free loop depicted by two-dimensional sonography (a), color Doppler (b), HDlive (c), and HDlive Silhouette (d) at 9 weeks of gestation. CC, central cyst; MH, midgut herniation; YS, yolk sac. Figure 4 A single umbilical cord cyst (UCC) located at the free loop depicted by two-dimensional sonography (a), color Doppler (b), HDlive (c), and HDlive Silhouette (d) at 8 weeks and 4 days of gestation. CC, central cyst; F, fetus; MH, midgut herniation; UA, umbilical artery; UC, umbilical cord; UV, umbilical vein; YS, yolk sac. Figure 5 Multiple umbilical cord cysts (UCCs) located on the placental side depicted by HDlive (a), and HDlive Silhouette (b and c) at 8 weeks and 6 days of gestation. MH, midgut herniation; UC, umbilical cord; VD, vitelline duct; YS, yolk sac. Figure 6 The flow diagram of participants with or without outcomes in control and study groups. UCC, umbilical cord cyst.