Figure 2: Case 1: placenta previa complete centralis. (a and b) MRI sagittal, coronal T2 and (c) sagittal T1-weighted fast-spin-echo showing uterine bulging of the lower uterine segment altering the normal pear shape of the gravid uterus and thickened inhomogeneous placenta infiltrating the inner layer of the myometrium at the lower uterine segment (arrow). Note the dark intraplacental band. Intact interface between the uterine serosa and the urinary bladder (site of previous cesarean section can be seen with fat anteriorly, arrowhead). A, anterior; P, Posterior.