The main diagnostic clues on the color Doppler image of the adherent placenta: loss of retroplacental clear space (yel- low arrow), gap in the retroplacental blood flow (red arrow), rich blood flow in placental lacunae (purple arrow).
The gray-scale sonographic image of the adherent placenta: the intraplacental lacunae (purple arrow), the irregular border between the placenta and bladder (red arrow), loss of ret- roplacental clear space (yellow arrow).
Placenta percreta: postoperative view .