Wilms tumor

Case contributed by Dr Jeremy Jones


Abdominal mass.

Patient Data

Age: 3 years

CT abdomen

CT of the abdomen with oral and intravenous contrast demonstrates a very large heterogeneous mass arising from the right kidney, and displacing the remaining renal parenchyma anteromedially. The mass contains mixed solid and cystic areas only only marginally enhances. 

On these images there is no convincing evidence of spread into adjacent structures. There is no convincing involvement of the renal vein or IVC. No convincing nodal or distant metastatic disease in the portions imaged.

Diagrammatic depiction of the claw sign, referring to the sharp angles on either side of the mass which the surrounding normal parenchyma forms when the mass has arisen from the parenchyma. An extrinsic mass pushing in will have blunt rounded interface with the underlying parenchyma. 

Case Discussion

This case demonstrates the typical appearance of a large right-sided Wilms tumor.

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Case information

rID: 8084
Published: 9th Jan 2010
Last edited: 17th Sep 2019
Tag: kidney
Inclusion in quiz mode: Included

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