Fig. 21

Solitary left pelvic kidney in a foetus at 20 weeks gestation, following termination of pregnancy for presumed renal aplasia. Post-mortem imaging was obtained 3 days after delivery. Transverse post-mortem ultrasound image (a) demonstrates a soft tissue mass in the left iliac fossa which lacks the normal expected renal corticomedullary differentiation but appears to have a demonstrable hilum (solid arrow). The same finding is demonstrated on the corresponding post-mortem T2 weighted MRI study, obtained in axial plane (b) and also on photographs obtained at autopsy (c), acquired after careful dissection of the anterior abdominal wall. The extracted soft tissue mass (d) was confirmed to be renal in origin