Wilms' tumour: ultrasound and changing concepts.

This review traces the changes that have occurred in our understanding of the pathology, radiographic diagnosis and prognosis of Wilms' tumour. Ultrasound has replaced intravenous urography as the main method for primary diagnosis. Computed tomography and magnetic resonance have with few exceptions added little to the primary diagnosis. Follow-up should be by ultrasound and examination but computed tomography has advantages in detecting pulmonary metastases. The survival rate has dramatically improved in the last 15 years and this is shown by tabulating the treatment and survival rates during this period.