Fig. 6 Placenta increta at the area of cesarean section scar as
indicated by the arrow in Fig. 5. Notice the absence of a decidual
layer and fibrosis of the uterine wall in this area. The absence of
smooth muscle should not be interpreted as percreta at the scar unless
accompanied by infiltrating trophoblast to the outer surface or
adherent fat. [H&E stained section, 9200 original magnification]