Findings suggestive of a placenta accreta in antenatal ultrasound scan

1. Loss of normal hypoechoic rim of myometrial tissue beneath the placenta

2. Loss of normal hyperechoic uterine serosa-bladder wall interface

3. Presence of tissue of placenta echotexture extending beyond the uterine serosa, sometimes seen within the lumen of bladder

4. Sometimes multiple or large placental venous lakes are seen, giving the placenta moth-eaten appearance