Fig. 1

Fetal ultrasound at 23 + 5 weeks gestation showed a pulmonary artery (PA) dilatation with an internal diameter of about 4.5 mm; b complete atrioventricular septal defect manifestation during diastole; c common atrioventricular valve (red arrow), foramen ovale closure (yellow arrow), atrial septal defect with the width of 2.2 mm (green arrow), ventricular septal defect with the width of 2.6 mm (white arrow) and right heart enlargement manifestations during systole; d dilatation of the stomach measuring about 32 × 13 mm and esophageal dilation with the widest internal diameter of 9 mm (considering pyloric obstruction); e a 11 × 7.5 mm hypodense mass in the upper pole of the left kidney. Abbreviation: ESO, esophagus; LA, left atrium; LK left kidney; LV, left ventricle; PA, pulmonary artery; RA, right atrium; RV, right ventricle; STO, stomach