Fig. 22

Cross-fused renal ectopia (‘pancake kidney’) in a foetus at 22 weeks gestation, following termination of pregnancy for multiple congenital anomalies. The post-mortem ultrasound images were acquired 10 days after delivery. Transverse ultrasound images through the lower abdomen (a) demonstrate cross-fused kidneys. The right moiety (dotted arrows) and left moiety (solid arrows) are demonstrated and show moderate calyceal dilation. On the sagittal ultrasound imaging of the distended urinary bladder (asterisk) (b), one can partially visualise the kidneys, demonstrating their pelvic location in the abdomen (solid arrow).