there were pathologic alterations in the placenta which consisted of degeneration of the trophoblast , thrombosis of maternal blood channels in the giant cell trophoblast layer and in the labyrinth , congestion of the labyrinth , hemorrhage into the uterine cavity , placental separation , intra-uterine fetal death , decidual and uterine vein thrombosis , and placentitis in 10 per cent of the cases .
C0032043
placenta
C0000832
placental separation