Synopsis

Placenta Accreta Spectrum Disorder (PASD) is a life-threatening condition occuring in female patients who have previously undergone cesarean section or uterine instrumentation. In this condition, the placenta is strongly adherent to or invades the myometrium, without intervening decidua. It does not separate normally at the time of delivery, leading to catastrophic hemorrhage. Identifying the most frequent signs of PASD helps with diagnosis, including T2-dark intraplacental bands, placental/uterine bulge, loss of retroplacental T2-hypointense line, myometrial thinning and bladder wall interruption and focal exophytic mass and abnormal vascularization of placental bed. Presence of placental bulge is suggestive of higher grades of myoinvasion.

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