Figure 3.

Pitfall—clot mimicking a dark intraplacental band: (a) sagittal T₂ single-shot fast spin-echo (SSFSE) image demonstrates a linear low T₂ signal intensity (T2SI) region (asterisk) in the expected region of the previous caesarean section scar. (b) Coronal T₂ SSFSE image of the same area, the linear region of low T2SI (asterisk) is again visualized. (c) Sagittal T₂ balanced gradient-echo image demonstrates persistent low T2SI (asterisk), suggestive but not typical of a dark intraplacental band. (d) Sagittal T₁ weighted image demonstrates this area returns high T₁ signal intensity (asterisk) in keeping with haemorrhage. Overall appearances are not in keeping with a dark intraplacental band. At caesarean section, the placenta was removed normally.