Placenta increta

Placenta increta is an intermediate level in the spectrum of abnormal placental villous implantation and accounts for ~20% of such cases. The placental villi extend beyond the confines of the endometrium and invade the myometrium.


The estimated incidence is increasing (likely related to the increased practice of cesarean sections), probably ~1 in 50,000 pregnancies.

Risk factors 


In placenta increta, chorionic villi invade well into the myometrium but not through the entire wall.

Radiographic features


As with the less severe placenta accreta, there can be focal obliteration of the retroplacental hypoechoic zone .

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