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Imaging in the diagnosis and staging of paediatric abdominal tumours

Department of Clinical Radiology, St James's University Hospital, Beckett Street, Leeds LS9 7TF, UK

• Ultrasound should be the first imaging modality employed in the evaluation of an abdominal mass.
  
• CT and MRI requiring general anaesthesia should be undertaken in a specialist centre, particularly if percutaneous biopsy of the lesion is to be performed.
  
• In patients with Wilms' tumours it is important to check for vascular invasion.
  
• It is essential to confirm or exclude tumour extension into the spinal canal in children with neuroblastoma.
  
• Regional node involvement is a poor prognostic indicator in rhabdomyosarcoma, and these structures must be imaged adequately.
  
• MRI is an essential pre-surgical investigation in children with liver tumours.
  
• Children cured of their first malignancy have a significant risk of developing a second tumour.
  

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