What is Wilms tumor?

Also known as: Wilms tumor, nephroblastoma.

Wilms tumor is a rare type of cancer that starts in the kidney and occurs most often in children ages 3 or 4. The cancer usually affects one of the two kidneys, though it can occur in both at the same time. There are 2 major types of Wilms tumor based on how they look under the microscope. Most have cells that give children a good chance of being cured.


Reviewed by: Jack Wolfsdorf, MD, FAAP

This page was last updated on: 1/29/2019 3:21:13 PM

© 2024 Nicklaus Children's Hospital. All Rights Reserved.