Fig. 1
From: A case of placental trisomy 18 mosaicism causing a false negative NIPT result
Ultrasound examination images. a Ultrasound examination result at 30wk. A ventricular septal defect for 2.2 mm was shown as the arrow in the image. Abbreviations: LA, left atrium; LV, left ventricle; RA, right atrium; RV, right ventricle; VSD, ventricular septal defect. b Ultrasound examination result at 33wk. A ventricular septal defect (VSD) for 3.0 mm was shown as the arrow in the image