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