Radiology Which one of the following ultrasound marker is associated with greatest increased risk for Trisomy 21 in fetus A Echogenic foci in heart B Hyperechogenic bowel C Choroid plexus cysts D Nuchal edema 💡 Explanation Which one of the following ultrasound marker is associated with greatest increased risk for Trisomy 21 in fetus ✓ Correct Answer: D. Nuchal edema