Figure 1.

Histological analysis of the placenta with pathological invasion: placenta accreta (a), placenta increta (b), placenta percreta (c). In the images of histological sections (a–c), stained with hematoxylin and eosin, “V” denotes chorionic villi and ”M” denotes myometrium. In image (a) with 100× magnification, the mononuclear intermediate trophoblast is marked with a black arrow, and the fibrinoid is marked with a red arrow; in image (b) with 100× magnification and in image (c) with 40× magnification, the arrow indicates the lumen of the myometrium blood vessel.