What are the tests for wilms tumor?

Ultrasound: Ultrasound of abdomen can show this childhood tumor.

Imaging and tissue: Ultrasound is many times the first imaging modality used, then ct scans are required for staging. The kidney with wilms is completely removed (unless there is bilateral disease), and then a pathologist determines whether its appearance falls under favorable histology, or focal or diffuse anaplasia. All of this information will guide therapy.