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== Images ==
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File:IPLab13WT1.jpg|This is autopsy specimen if from a similar case of a child who died of Wilms tumor. This gross photograph of a shows the bladder (1) to which are attached a normal kidney (2) and a kidney with Wilms' tumor (3). A large mass extends from the superior pole of the affected kidney. The renal capsule can be seen extending around this tumor. File:IPLab13WT2.jpg|This is a closer view of the kidney with Wilms' tumor (arrows).
File:IPLab13WT3.jpg|This is a gross photograph of lung from this case demonstrating the metastatic tumor nodule (arrow).
File:IPLab13WT4.jpg|This lowest-power view shows the tumor itself; no tissue is present that can be readily identified as normal kidney. There does appear to be a capsule surrounding the tumor. Eosinophilic bands are seen surrounding basophilic islands of cells. These correspond to the two types of tissue in this tumor--the basophilic cellular component termed "blastema" can be distinguished from less cellular eosinophilic areas.
