<prompt> The placenta is anchored to the myometrium partially or completely without any intervening decidua is calledPlacenta accretaPlacenta incretaPlacenta succenturiaPlacenta percreta  <response>: Ans-A Placenta accreta 420-DPlacenta accreta is an extremely rare forming in which the placenta is directly anchored to the myometrium partially or completely without any intervening decidua.Placenta succenturiata - one usual or more small lobe of placenta, size of a cotyledon, may be placed at varying distances from the main placental marginBattledore placenta. The cord is attached to the margin of the placentaVelamentous placenta. The cord is attached to the membranePlacenta membranecae - The placenta is unduly large and thin. The placenta not only develops from the chorion frondosum but also from the chorion leave so that the whole of the ovum is practically covered by the placentaPathological confirmation includes. Placenta accretaa Absence of decidua basalisb Absence of Nitabuchs fibrinoid layerc Varying degree of penetration of the Villi into the muscle bundles increta or upto the serosal layer percreta 420-D The risks include haemorrhage, shock, infection and rarely inversion of the uterus 