Tumour with renal outline; on posterior surface a short length of ureter is seen. Kidney is replaced in
lower pole by solid tumour, and in upper half by cystic tumour in which there are areas of
Child, aged 6 months, presented with large left abdominal mass. Investigation confirmed
large solid mass in position of left kidney. She was subsequently
treated by chemotherapy, and at age of 18 months was well.